windows: replace shobjidl_core.h usage with shobjidl.h except for when targeting xbox

Closes https://github.com/libsdl-org/SDL/pull/13571

CMakeLists.txt

@@ -2016,7 +2016,6 @@ elseif(WINDOWS)
   check_include_file(audioclient.h HAVE_AUDIOCLIENT_H)
   check_include_file(sensorsapi.h HAVE_SENSORSAPI_H)
   check_include_file(shellscalingapi.h HAVE_SHELLSCALINGAPI_H)
-  check_include_file(shobjidl_core.h HAVE_SHOBJIDL_CORE_H)
   check_c_source_compiles("
     #include <windows.h>
     #include <mfapi.h>