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/ut472/ut472.c

@@ -1,13 +1 @@
 #include "ut472.h"
-
-void matrix_init_kb(void) {
-  // Keyboard start-up code goes here
-  // Runs once when the firmware starts up
-  matrix_init_user();
-};
-
-void matrix_scan_kb(void) {
-  // Looping keyboard code goes here
-  // This runs every cycle (a lot)
-  matrix_scan_user();
-};