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/kmini/kmini.c

@@ -26,7 +26,3 @@ void led_init_ports(void) {
  * Side1: Low B3
  * Side2: Low B2
  */
-void led_set_kb(uint8_t usb_led) {
-    led_set_user(usb_led);
-}
-