Remove unused header in drivers and modules.

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

modules/webp/image_loader_webp.cpp

@@ -32,16 +32,9 @@
 
 #include "webp_common.h"
 
-#include "core/config/project_settings.h"
-#include "core/io/marshalls.h"
-#include "core/os/os.h"
-#include "core/string/print_string.h"
-
 #include <webp/decode.h>
 #include <webp/encode.h>
 
-#include <stdlib.h>
-
 static Ref<Image> _webp_mem_loader_func(const uint8_t *p_webp_data, int p_size) {
 	Ref<Image> img;
 	img.instantiate();