[Keyboard] Remove empty led_set_kb() from crkbd/rev1 (#6230)

keyboards/crkbd/rev1/rev1.c

@@ -6,13 +6,6 @@
     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
-
 #ifdef RGB_MATRIX_ENABLE
 
   // Logical Layout