clearGroupKeyB method
Clears (removes) the stored Group Key B from secure storage and invokes
the native method SmartfaceMobile.clearGroupKeyB.
Use this method when you want to explicitly remove the key instead of
passing 0 to addGroupKeyB.
Returns an Either with an error message on the left if the operation
fails, or the native dynamic result on the right if it succeeds.
Implementation
Future<Either<String, dynamic>> clearGroupKeyB() async {
await _secureStorageWrite(key: 'groupKeyB', value: '');
return invokeNativeMethod('SmartfaceMobile.clearGroupKeyB');
}