Some minor refactoring of boards in 1upkeyboards directory (#5236)

* use #pragma once

* get rid of code for unused indicators

* pragma once and other small fixes for consistency

* use #pragma once

* pragma once and other small fixes for consistency

* add a short blurb to the readme

* turn on compiler optimization flags

* remove the compiler optimization

* remove compiler optimization for super16

keyboards/1upkeyboards/1up60rgb/1up60rgb.h

@@ -1,5 +1,4 @@
-#ifndef KB_H
-#define KB_H
+#pragma once
 
 #include "quantum.h"
 
@@ -77,5 +76,3 @@
 	K300, KC_NO,K302, K303, K304, K305, K306, K307, K308, K309, K310, K311,       K313, K314, \
 	KC_NO,K401,       K403,             K406,                   KC_NO,K411,       K413, KC_NO \
 )
-
-#endif