COCOS2D_DEBUG is always 1 on Android

[formatCvt]

• cocos2d-x version: 3.17.1
• devices test on: any android device
• developing environments
  • NDK version: ndk18
  • Xcode version: -
  • VS version: -
  • browser type and version: -

Steps to Reproduce:

1. Create empty project
2. add this code in any place to AppDelegate.cpp:

#if defined(NDEBUG) && (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#ifdef COCOS2D_DEBUG
#if COCOS2D_DEBUG > 0
#warning COCOS2D_DEBUG > 0 defined!
#else
#warning COCOS2D_DEBUG = 0 defined!
#endif
#else
#warning COCOS2D_DEBUG is not defined!
#endif
#endif

3. switch to release mode and build project