Fix Duplicated includes

src/video/wayland/SDL_waylandvulkan.c

@@ -28,8 +28,6 @@
 
 #if defined(SDL_VIDEO_VULKAN) && defined(SDL_VIDEO_DRIVER_WAYLAND)
 
-#include "../SDL_vulkan_internal.h"
-
 #include "SDL_waylandvideo.h"
 #include "SDL_waylandwindow.h"