Remove empty override functions (#14312)

* Remove empty override functions, 0-9

* Remove empty override functions, A-D

* Remove empty override functions, E-H

* Remove empty override functions, handwired

* Remove empty override functions, I-L

* Remove empty override functions, M-P

* Remove empty override functions, Q-T

* Remove empty override functions, U-Z

keyboards/matrix/noah/noah.c

@@ -50,11 +50,6 @@ void rgblight_set(void) {
 }
 #endif
 
-void matrix_init_kb(void) { matrix_init_user(); }
-
-__attribute__((weak))
-void matrix_init_user(void) { }
-
 void matrix_scan_kb(void) {
 #ifdef RGBLIGHT_ENABLE
     rgblight_task();
@@ -62,9 +57,6 @@ void matrix_scan_kb(void) {
     matrix_scan_user();
 }
 
-__attribute__((weak))
-void matrix_scan_user(void) { }
-
 #ifdef RGB_MATRIX_ENABLE
 const is31_led __flash g_is31_leds[DRIVER_LED_TOTAL] = {
 /* Refer to IS31 manual for these locations