removeObserver method

@override Future<void> removeObserver(TUICallObserver observer)

Implementation

@override
Future<void> removeObserver(TUICallObserver observer) async {
  if (!kIsWeb && (Platform.isIOS || Platform.isAndroid)) {
    _observerList.remove(observer);
    if (_observerList.isEmpty) {
      methodChannel.invokeMethod("removeObserver", {});
    }
  }
}