Fixed building with an older SDK and macOS target

include/SDL_config_macosx.h

@@ -144,16 +144,11 @@
 #define SDL_JOYSTICK_HIDAPI 1
 #define SDL_JOYSTICK_IOKIT  1
 #define SDL_JOYSTICK_VIRTUAL    1
-#define SDL_JOYSTICK_MFI 1
 #define SDL_HAPTIC_IOKIT    1
 
 /* The MFI controller support requires ARC Objective C runtime */
-#if TARGET_OS_OSX
-#  if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_8
-#  undef SDL_JOYSTICK_MFI
-#  elif defined(__i386__) && __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_12
-#  undef SDL_JOYSTICK_MFI
-#  endif
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080 && !defined(__i386__)
+#define SDL_JOYSTICK_MFI 1
 #endif
 
 /* Enable the dummy sensor driver */