Qt Android documentation mentions invalid info about api specific code exclusion

The page https://doc.qt.io/qt-6/deployment-android.html mentions that androiddeployqt can exclude some java code specific to given api level if the code is guarded like:

//@ANDROID-21
    @Override
    public void onActivityReenter(int resultCode, Intent data)
    {}
//@ANDROID-21

This is not really handled by androiddeployqt, so either update the docs or add the feature to androiddeployqt.