SDL 3.0 is going to be high DPI aware and officially separates screen… (#7145)

* SDL 3.0 is going to be high DPI aware and officially separates screen coordinates from client pixel area

The public APIs to disable high DPI support have been removed

Work in progress on https://github.com/libsdl-org/SDL/issues/7134

test/testautomation_hints.c

@@ -21,7 +21,6 @@ const char *HintsEnum[] = {
     SDL_HINT_RENDER_VSYNC,
     SDL_HINT_TIMER_RESOLUTION,
     SDL_HINT_VIDEO_ALLOW_SCREENSAVER,
-    SDL_HINT_VIDEO_HIGHDPI_DISABLED,
     SDL_HINT_VIDEO_MAC_FULLSCREEN_SPACES,
     SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS,
     SDL_HINT_VIDEO_WINDOW_SHARE_PIXEL_FORMAT,
@@ -45,7 +44,6 @@ const char *HintsVerbose[] = {
     "SDL_RENDER_VSYNC",
     "SDL_TIMER_RESOLUTION",
     "SDL_VIDEO_ALLOW_SCREENSAVER",
-    "SDL_VIDEO_HIGHDPI_DISABLED",
     "SDL_VIDEO_MAC_FULLSCREEN_SPACES",
     "SDL_VIDEO_MINIMIZE_ON_FOCUS_LOSS",
     "SDL_VIDEO_WINDOW_SHARE_PIXEL_FORMAT",