Replace include guards with pragma once

include/PSX/Overlay/overlay.hpp

@@ -1,5 +1,4 @@
-#ifndef __JABYENGINE_OVERLAY__HPP__
-#define __JABYENGINE_OVERLAY__HPP__
+#pragma once
 #include "../AutoLBA/auto_lba.hpp"
 
 namespace JabyEngine {
@@ -7,5 +6,4 @@ namespace JabyEngine {
 
     // Can be used to create dummy values to trick LZ4 into compressing an uncompressed overlay
     #define __create_dummy_fill(length) static const uint8_t __section(".keep.dummy") __used DummyFilling[length] = {0x0}
-}
-#endif //!__JABYENGINE_OVERLAY__HPP__
+}

include/PSX/Overlay/overlay_declaration.hpp

@@ -1,10 +1,8 @@
-#ifndef __JABYENGINE_OVERLAY_DECLARATION__HPP__
-#define __JABYENGINE_OVERLAY_DECLARATION__HPP__
+#pragma once
 
 // No include here because this header should be included in a namespace and we don't want multiple namespace definitions of OverlayHeader and OverlayLBA
 
 #include "../AutoLBA/auto_lba_declaration.hpp"
 
 #define __declare_overlay_header(function, enum_struct) \
-__declare_lba_header(enum_struct)
-#endif //!__JABYENGINE_OVERLAY_DECLARATION__HPP__
+__declare_lba_header(enum_struct)