Removed unused headers from SDL_rect.h

Fixes https://github.com/libsdl-org/SDL/issues/8966

include/SDL3/SDL_rect.h

@@ -30,8 +30,6 @@
 
 #include <SDL3/SDL_stdinc.h>
 #include <SDL3/SDL_error.h>
-#include <SDL3/SDL_pixels.h>
-#include <SDL3/SDL_rwops.h>
 
 #include <SDL3/SDL_begin_code.h>
 /* Set up for C function definitions, even when using C++ */