@Nullable
    public String removeScope(@NonNull String packageName) {
        try {
            return mService.removeScope(packageName);
        } catch (RemoteException e) {
            throw new ServiceException(e);
        }
    }
Remove an app from the module scope.

@param packageName Package name of the app to be added
@return null if successful, or non-null with error message
@throws ServiceException If the service is dead or an error occurred
android/third_party/libxposed/service/src/main/java/io/github/libxposed/service/XposedService.java