Issue 6854 - Remove deprecated FilterNotifier methods

lib/filterNotifier.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 /**
  * @fileOverview This component manages listeners and calls them to distributes
  * messages about filter changes.
  */
 
 const {EventEmitter} = require("./events");
-const {desc} = require("./coreUtils");
-
-const CATCH_ALL = "__all";
-
-/**
- * @callback FilterNotifierCatchAllListener
- * @param {string} action
- * @param {Subscription|Filter} item
- * @param {...*} additionalInfo
- */
 
 /**
  * This class allows registering and triggering listeners for filter events.
  * @class
  */
-exports.FilterNotifier = Object.create(new EventEmitter(), desc({
-  /**
-   * Adds a listener
-   *
-   * @deprecated use FilterNotifier.on(action, callback)
-   * @param {FilterNotifierCatchAllListener} listener
-   */
-  addListener(listener)
-  {
-    let listeners = this._listeners.get(CATCH_ALL);
-    if (!listeners || listeners.indexOf(listener) == -1)
-      this.on(CATCH_ALL, listener);
-  },
-
-  /**
-   * Removes a listener that was previosly added via addListener
-   *
-   * @deprecated use FilterNotifier.off(action, callback)
-   * @param {FilterNotifierCatchAllListener} listener
-   */
-  removeListener(listener)
-  {
-    this.off(CATCH_ALL, listener);
-  },
-
-  /**
-   * Notifies listeners about an event
-   * @param {string} action event code ("load", "save", "elemhideupdate",
-   *                 "subscription.added", "subscription.removed",
-   *                 "subscription.disabled", "subscription.title",
-   *                 "subscription.lastDownload", "subscription.downloadStatus",
-   *                 "subscription.homepage", "subscription.updated",
-   *                 "filter.added", "filter.removed", "filter.moved",
-   *                 "filter.disabled", "filter.hitCount", "filter.lastHit")
-   * @param {Subscription|Filter} item item that the change applies to
-   * @param {*} param1
-   * @param {*} param2
-   * @param {*} param3
-   * @deprecated use FilterNotifier.emit(action)
-   */
-  triggerListeners(action, item, param1, param2, param3)
-  {
-    this.emit(action, item, param1, param2, param3);
-    this.emit(CATCH_ALL, action, item, param1, param2, param3);
-  }
-}));
+exports.FilterNotifier = Object.create(new EventEmitter());