Removed unnecessary call to SDL_free().

src/video/emscripten/SDL_emscriptenvideo.c

@@ -72,7 +72,6 @@ Emscripten_CreateDevice(int devindex)
     device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
     if (!device) {
         SDL_OutOfMemory();
-        SDL_free(device);
         return (0);
     }