code: public final void removeCloseListener(@NonNull final CloseListener listener) {
          Condition.INSTANCE.ensureNotNull(listener, "The listener may not be null");
          listeners.remove(listener);
      }
docs: Removes a specific listener, which should not be notified, when the chip has been closed,
  anymore.
  
  @param listener
  The listener, which should be removed, as an instance of the type {@link
  CloseListener}. The listener may not be null