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/tkc/candybar/lefty/lefty.c

@@ -15,7 +15,3 @@
  */
 
 #include "lefty.h"
-
-void matrix_init_kb(void) {
-  matrix_init_user();
-}