Clean up includes for glcdfont headers (#7745)

* Clean up includes for glcdfont headers

* Remove pragma once, most of these are not headers

* Missed these

tmk_core/common/progmem.h

@@ -1,5 +1,4 @@
-#ifndef PROGMEM_H
-#define PROGMEM_H 1
+#pragma once
 
 #if defined(__AVR__)
 #    include <avr/pgmspace.h>
@@ -9,5 +8,3 @@
 #    define pgm_read_word(p) *((uint16_t*)(p))
 #    define pgm_read_dword(p) *((uint32_t*)(p))
 #endif
-
-#endif