@Override
    public void removeOnListChangedCallback(OnListChangedCallback listener) {
        if (mListeners != null) {
            mListeners.remove(listener);
        }
    }
An {@link ObservableList} implementation using ArrayList as an implementation.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/util/obs/ObservableArrayList.java