Fixed accidental call to SDL_PrivateJoystickHat()

Author: slouken

src/joystick/iphoneos/SDL_sysjoystick.m

@@ -513,7 +513,6 @@ SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index)
  };
 
  hatstate = SDL_SYS_MFIJoystickHatStateForDPad(gamepad.dpad);
- SDL_PrivateJoystickHat(joystick, 0, hatstate);
 
  for (i = 0; i < SDL_arraysize(buttons); i++) {
  updateplayerindex |= (joystick->buttons[i] != buttons[i]);