Remove `matrix_key_count()` (#16603)

* Remove `matrix_key_count()`

* Remove `matrix_bitpop()`

50 files changed, 4 insertions, 516 deletions

diff --git a/keyboards/40percentclub/ut47/matrix.c b/keyboards/40percentclub/ut47/matrix.c
index 89537592c5..97922e2dbe 100644
--- a/keyboards/40percentclub/ut47/matrix.c
+++ b/keyboards/40percentclub/ut47/matrix.c
@@ -118,15 +118,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 /* Column pin configuration
  * col: 0   1   2   3   4   5   6   7   8   9   10  11
  * pin: D7  E6  B4  B5  B6  B2  B3  B1  F7  F6  F5  F4
diff --git a/keyboards/amj96/matrix.c b/keyboards/amj96/matrix.c
index ffd66d120f..2999c6241b 100644
--- a/keyboards/amj96/matrix.c
+++ b/keyboards/amj96/matrix.c
@@ -130,15 +130,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 /* Column pin configuration
  * col: 0   1   2   3   4   5   6   7   8   9   10  11  12  13  14  15
  * pin: F7  F6  F5  F4  F1  F0  E6  D7  D6  D5  D1  D0  B7  B6  B0  C7
diff --git a/keyboards/bpiphany/hid_liber/matrix.c b/keyboards/bpiphany/hid_liber/matrix.c
index da73c616d7..90e8a327b5 100755
--- a/keyboards/bpiphany/hid_liber/matrix.c
+++ b/keyboards/bpiphany/hid_liber/matrix.c
@@ -245,15 +245,3 @@ void matrix_print(void)
         print("\n");
     }
 }
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        for (uint8_t j = 0; j < MATRIX_COLS; j++) {
-            if (matrix_is_on(i, j))
-                count++;
-        }
-    }
-    return count;
-}
diff --git a/keyboards/bpiphany/kitten_paw/matrix.c b/keyboards/bpiphany/kitten_paw/matrix.c
index 56114858f1..6548040c7c 100644
--- a/keyboards/bpiphany/kitten_paw/matrix.c
+++ b/keyboards/bpiphany/kitten_paw/matrix.c
@@ -132,14 +132,6 @@ void matrix_print(void) {
   }
 }
 
-uint8_t matrix_key_count(void) {
-  uint8_t count = 0;
-  for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-    count += bitpop32(matrix[i]);
-  }
-  return count;
-}
-
 static uint8_t read_rows(void) {
   return
     (PINC&(1<<7) ? 0 : (1<<0)) |
diff --git a/keyboards/bpiphany/pegasushoof/2013/matrix.c b/keyboards/bpiphany/pegasushoof/2013/matrix.c
index 09244982d9..a55cba7afd 100644
--- a/keyboards/bpiphany/pegasushoof/2013/matrix.c
+++ b/keyboards/bpiphany/pegasushoof/2013/matrix.c
@@ -132,15 +132,6 @@ void matrix_print(void)
 	}
 }
 
-uint8_t matrix_key_count(void)
-{
-	uint8_t count = 0;
-	for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-		count += bitpop16(matrix[i]);
-	}
-	return count;
-}
-
 static matrix_row_t read_cols(void)
 {
 	return
diff --git a/keyboards/bpiphany/pegasushoof/2015/matrix.c b/keyboards/bpiphany/pegasushoof/2015/matrix.c
index b05869feda..2b142f9fc8 100644
--- a/keyboards/bpiphany/pegasushoof/2015/matrix.c
+++ b/keyboards/bpiphany/pegasushoof/2015/matrix.c
@@ -111,15 +111,6 @@ void matrix_print(void)
   }
 }
 
-uint8_t matrix_key_count(void)
-{
-  uint8_t count = 0;
-  for (uint8_t i = 0; i < matrix_rows(); i++) {
-    count += bitpop16(matrix_get_row(i));
-  }
-  return count;
-}
-
 static matrix_row_t read_cols(void)
 {
   return
diff --git a/keyboards/bpiphany/tiger_lily/matrix.c b/keyboards/bpiphany/tiger_lily/matrix.c
index 47a92268c8..abf6f3f42b 100644
--- a/keyboards/bpiphany/tiger_lily/matrix.c
+++ b/keyboards/bpiphany/tiger_lily/matrix.c
@@ -146,10 +146,3 @@ void matrix_print(void) {
     }
 	#endif
 }
-
-uint8_t matrix_key_count(void) {
-    uint8_t count = 0;
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++)
-        count += bitpop32(matrix[row]);
-    return count;
-}
diff --git a/keyboards/bpiphany/unloved_bastard/matrix.c b/keyboards/bpiphany/unloved_bastard/matrix.c
index 328d9015c2..98cdf22f48 100644
--- a/keyboards/bpiphany/unloved_bastard/matrix.c
+++ b/keyboards/bpiphany/unloved_bastard/matrix.c
@@ -147,10 +147,3 @@ void matrix_print(void) {
     }
 #endif
 }
-
-uint8_t matrix_key_count(void) {
-    uint8_t count = 0;
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++)
-        count += bitpop32(matrix[row]);
-    return count;
-}
diff --git a/keyboards/converter/ibm_terminal/matrix.c b/keyboards/converter/ibm_terminal/matrix.c
index caa0a38051..3d6736a0cc 100644
--- a/keyboards/converter/ibm_terminal/matrix.c
+++ b/keyboards/converter/ibm_terminal/matrix.c
@@ -27,7 +27,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
 #define print_matrix_header()  print("\nr/c 01234567\n")
-#define matrix_bitpop(i)       bitpop(matrix[i])
 #define ROW_SHIFTER ((uint8_t)1)
 
 
diff --git a/keyboards/converter/palm_usb/matrix.c b/keyboards/converter/palm_usb/matrix.c
index 010fd56c79..28d4b87d83 100644
--- a/keyboards/converter/palm_usb/matrix.c
+++ b/keyboards/converter/palm_usb/matrix.c
@@ -379,12 +379,3 @@ void matrix_print(void)
         print("\n");
     }
 }
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop(matrix[i]);
-    }
-    return count;
-}
diff --git a/keyboards/converter/sun_usb/matrix.c b/keyboards/converter/sun_usb/matrix.c
index e28d165d52..35ec391024 100644
--- a/keyboards/converter/sun_usb/matrix.c
+++ b/keyboards/converter/sun_usb/matrix.c
@@ -179,12 +179,3 @@ void matrix_print(void)
         print("\n");
     }
 }
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop(matrix[i]);
-    }
-    return count;
-}
diff --git a/keyboards/converter/usb_usb/custom_matrix.cpp b/keyboards/converter/usb_usb/custom_matrix.cpp
index 265fb2c68d..00b5bc5053 100644
--- a/keyboards/converter/usb_usb/custom_matrix.cpp
+++ b/keyboards/converter/usb_usb/custom_matrix.cpp
@@ -225,18 +225,6 @@ extern "C"
         return row_bits;
     }
 
-    uint8_t matrix_key_count(void) {
-        uint8_t count = 0;
-
-        count += bitpop(local_keyboard_report.mods);
-        for (uint8_t i = 0; i < KEYBOARD_REPORT_KEYS; i++) {
-            if (IS_ANY(local_keyboard_report.keys[i])) {
-                count++;
-            }
-        }
-        return count;
-    }
-
     void matrix_print(void) {
         print("\nr/c 0123456789ABCDEF\n");
         for (uint8_t row = 0; row < matrix_rows(); row++) {
diff --git a/keyboards/dc01/arrow/matrix.c b/keyboards/dc01/arrow/matrix.c
index b69e147914..e7c3bec2b5 100644
--- a/keyboards/dc01/arrow/matrix.c
+++ b/keyboards/dc01/arrow/matrix.c
@@ -48,17 +48,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -234,17 +231,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
-
-
-
 #if (DIODE_DIRECTION == COL2ROW)
 
 static void init_cols(void)
@@ -388,4 +374,4 @@ static void unselect_cols(void)
 void matrix_setup(void){
     i2c_slave_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
     sei(); //enable interupts
-}
\ No newline at end of file
+}
diff --git a/keyboards/dc01/left/matrix.c b/keyboards/dc01/left/matrix.c
index 3eeb2586bc..8b8f89a081 100644
--- a/keyboards/dc01/left/matrix.c
+++ b/keyboards/dc01/left/matrix.c
@@ -52,17 +52,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -259,17 +256,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
-
-
-
 #if (DIODE_DIRECTION == COL2ROW)
 
 static void init_cols(void)
diff --git a/keyboards/dc01/numpad/matrix.c b/keyboards/dc01/numpad/matrix.c
index e8e2a1b14a..1dc90a6b84 100644
--- a/keyboards/dc01/numpad/matrix.c
+++ b/keyboards/dc01/numpad/matrix.c
@@ -48,17 +48,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -234,17 +231,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
-
-
-
 #if (DIODE_DIRECTION == COL2ROW)
 
 static void init_cols(void)
@@ -388,4 +374,4 @@ static void unselect_cols(void)
 void matrix_setup(void){
     i2c_slave_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
     sei(); //enable interupts
-}
\ No newline at end of file
+}
diff --git a/keyboards/dc01/right/matrix.c b/keyboards/dc01/right/matrix.c
index 2509bd7d4c..f21dec1d2b 100644
--- a/keyboards/dc01/right/matrix.c
+++ b/keyboards/dc01/right/matrix.c
@@ -49,17 +49,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -235,17 +232,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
-
-
-
 #if (DIODE_DIRECTION == COL2ROW)
 
 static void init_cols(void)
@@ -389,4 +375,4 @@ static void unselect_cols(void)
 void matrix_setup(void){
     i2c_slave_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
     sei(); //enable interupts
-}
\ No newline at end of file
+}
diff --git a/keyboards/dichotomy/matrix.c b/keyboards/dichotomy/matrix.c
index 806b66d498..dc90e7501e 100755
--- a/keyboards/dichotomy/matrix.c
+++ b/keyboards/dichotomy/matrix.c
@@ -34,17 +34,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -215,12 +212,3 @@ void matrix_print(void)
         print("\n");
     }
 }
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
diff --git a/keyboards/duck/jetfire/matrix.c b/keyboards/duck/jetfire/matrix.c
index 729fa6dd14..2b64885842 100644
--- a/keyboards/duck/jetfire/matrix.c
+++ b/keyboards/duck/jetfire/matrix.c
@@ -136,15 +136,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop32(matrix[i]);
-    }
-    return count;
-}
-
 static void init_ports(void)
 {
     // Rows are inputs (inputs are 0)
@@ -268,4 +259,4 @@ static void select_col(uint8_t col)
             PORTB |= 0b00000001;
             break;
     }
-}
\ No newline at end of file
+}
diff --git a/keyboards/gboards/ergotaco/matrix.c b/keyboards/gboards/ergotaco/matrix.c
index 16300a7e4f..7e5d675218 100644
--- a/keyboards/gboards/ergotaco/matrix.c
+++ b/keyboards/gboards/ergotaco/matrix.c
@@ -221,15 +221,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 // Remember this means ROWS
 static void  init_cols(void)
 {
diff --git a/keyboards/gboards/georgi/matrix.c b/keyboards/gboards/georgi/matrix.c
index 7d635ad8d7..24bb2d7acf 100644
--- a/keyboards/gboards/georgi/matrix.c
+++ b/keyboards/gboards/georgi/matrix.c
@@ -242,15 +242,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 // Remember this means ROWS
 static void  init_cols(void)
 {
diff --git a/keyboards/gboards/gergo/matrix.c b/keyboards/gboards/gergo/matrix.c
index 443e97132b..3898246e30 100644
--- a/keyboards/gboards/gergo/matrix.c
+++ b/keyboards/gboards/gergo/matrix.c
@@ -286,14 +286,6 @@ void matrix_print(void) {
     }
 }
 
-uint8_t matrix_key_count(void) {
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 // Remember this means ROWS
 static void  init_cols(void) {
     // init on mcp23018
diff --git a/keyboards/gboards/gergoplex/matrix.c b/keyboards/gboards/gergoplex/matrix.c
index a075b85725..d5b046fe40 100644
--- a/keyboards/gboards/gergoplex/matrix.c
+++ b/keyboards/gboards/gergoplex/matrix.c
@@ -164,13 +164,6 @@ void matrix_print(void) {
         print("\n");
     }
 }
-uint8_t matrix_key_count(void) {
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
 
 // Remember this means ROWS
 static void init_cols(void) {
diff --git a/keyboards/handwired/dactyl/matrix.c b/keyboards/handwired/dactyl/matrix.c
index a70e8c5aca..5869b43c1b 100644
--- a/keyboards/handwired/dactyl/matrix.c
+++ b/keyboards/handwired/dactyl/matrix.c
@@ -307,15 +307,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 #if (DIODE_DIRECTION == COL2ROW)
 
 static void init_cols(void) {
diff --git a/keyboards/handwired/frenchdev/matrix.c b/keyboards/handwired/frenchdev/matrix.c
index a043f78538..6dec9c6a74 100644
--- a/keyboards/handwired/frenchdev/matrix.c
+++ b/keyboards/handwired/frenchdev/matrix.c
@@ -196,15 +196,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
 /* Column pin configuration
  *
  * Teensy
diff --git a/keyboards/handwired/owlet60/matrix.c b/keyboards/handwired/owlet60/matrix.c
index 211273d1fa..3b68c08b45 100644
--- a/keyboards/handwired/owlet60/matrix.c
+++ b/keyboards/handwired/owlet60/matrix.c
@@ -33,17 +33,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
 #    define ROW_SHIFTER ((uint16_t)1)
 #elif (MATRIX_COLS <= 32)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
 #    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
 #    define ROW_SHIFTER  ((uint32_t)1)
 #endif
 
@@ -130,15 +127,6 @@ void matrix_print(void)
     }
 }
 
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
-}
-
 // uses standard row code
 static void select_row(uint8_t row)
 {
diff --git a/keyboards/handwired/promethium/matrix.c b/keyboards/handwired/promethium/matrix.c
index 90dbce14a9..3b03ab8893 100644
--- a/keyboards/handwired/promethium/matrix.c
+++ b/keyboards/handwired/promethium/matrix.c
@@ -43,17 +43,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
 #    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
 #    define ROW_SHIFTER ((uint8_t)1)
 #elif (MATRIX_COLS <= 16)
 #    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
 #    define print_matri