Expect same controler GUID format for SDL2 on Windows as Linux (#18635)

Author: bcat

input/drivers_joypad/sdl_joypad.c

@@ -135,13 +135,8 @@ static void sdl_pad_connect(unsigned id)
 #ifdef HAVE_SDL2
    guid       = SDL_JoystickGetGUID(pad->joypad);
    guid_ptr   = (uint16_t*)guid.data;
-#ifdef __linux
    vendor     = guid_ptr[2];
    product    = guid_ptr[4];
-#elif _WIN32
-   vendor     = guid_ptr[0];
-   product    = guid_ptr[1];
-#endif
 #ifdef WEBOS
    if (vendor == 0x9999 && product == 0x9999)
    {