[Core] Remove matrix_is_modified() and debounce_is_active() (#15349)

keyboards/converter/palm_usb/matrix.c

@@ -58,8 +58,6 @@ static uint16_t disconnect_counter = 0;
 #define COL(code)    ((code & COL_MASK) )
 #define KEYUP(code) ((code & KEY_MASK) >>7 )
 
-static bool is_modified = false;
-
 __attribute__ ((weak))
 void matrix_init_kb(void) {
     matrix_init_user();
@@ -354,11 +352,6 @@ uint8_t matrix_scan(void)
     return code;
 }
 
-bool matrix_is_modified(void)
-{
-    return is_modified;
-}
-
 inline
 bool matrix_has_ghost(void)
 {

keyboards/converter/sun_usb/matrix.c

@@ -38,8 +38,6 @@ static uint8_t matrix[MATRIX_ROWS];
 #define ROW(code)      ((code>>3)&0xF)
 #define COL(code)      (code&0x07)
 
-static bool is_modified = false;
-
 __attribute__ ((weak))
 void matrix_init_kb(void) {
     matrix_init_user();
@@ -154,11 +152,6 @@ uint8_t matrix_scan(void)
     return code;
 }
 
-bool matrix_is_modified(void)
-{
-    return is_modified;
-}
-
 inline
 bool matrix_has_ghost(void)
 {

keyboards/converter/usb_usb/custom_matrix.cpp

@@ -192,10 +192,6 @@ extern "C"
         return 1;
     }
 
-    bool matrix_is_modified(void) {
-        return matrix_is_mod;
-    }
-
     bool matrix_is_on(uint8_t row, uint8_t col) {
         uint8_t code = CODE(row, col);