Remove unused header in drivers and modules.

Co-authored-by: Thaddeus Crews <repiteo@outlook.com>

modules/gdscript/gdscript_parser.cpp

@@ -34,13 +34,11 @@
 #include "gdscript_tokenizer_buffer.h"
 
 #include "core/config/project_settings.h"
-#include "core/io/file_access.h"
 #include "core/io/resource_loader.h"
 #include "core/math/math_defs.h"
 #include "scene/main/multiplayer_api.h"
 
 #ifdef DEBUG_ENABLED
-#include "core/os/os.h"
 #include "core/string/string_builder.h"
 #include "servers/text_server.h"
 #endif