code: public final void removeListener(
              @NonNull final Listener<DataType, KeyType, ViewType, ParamType> listener) {
          listeners.remove(listener);
      }
docs: Removes a specific listener, which should not be notified about the events of the data
  binder, anymore.
  
  @param listener
  The listener, which should be removed, as an instance of the type {@link Listener}.
  The listener may not be null