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/ergodash/mini/mini.c

@@ -4,10 +4,3 @@
     float tone_startup[][2] = SONG(STARTUP_SOUND);
     float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
 #endif
-
-#ifdef SSD1306OLED
-void led_set_kb(uint8_t usb_led) {
-    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
-    led_set_user(usb_led);
-}
-#endif