Method remove

src/core/data-structures/observable.js:36–41

* Removes the observer from this instance. * @param {function(TYPE=):void} handler Observer's instance.

(handler)

   * @param {function(TYPE=):void} handler Observer's instance.
   */
  remove(handler) {
    if (!this.handlers_) {
      return;
    }
    removeItem(this.handlers_, handler);
  }

  /**
   * Removes all observers.