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/config.h

@@ -1,5 +1,4 @@
-#ifndef CONFIG_H
-#define CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -46,5 +45,3 @@
 #define RGBLIGHT_SAT_STEP 8
 #define RGBLIGHT_VAL_STEP 8
 #endif
-
-#endif