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diff --git a/tools/addon-sdk-1.4/packages/api-utils/lib/events.js b/tools/addon-sdk-1.4/packages/api-utils/lib/events.js
deleted file mode 100644
index 4e36c00..0000000
--- a/tools/addon-sdk-1.4/packages/api-utils/lib/events.js
+++ /dev/null
@@ -1,202 +0,0 @@
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Jetpack.
- *
- * The Initial Developer of the Original Code is
- * the Mozilla Foundation.
- * Portions created by the Initial Developer are Copyright (C) 2010
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *   Irakli Gozalishvili <gozala@mozilla.com> (Original Author)
- *   Drew Willcoxon <adw@mozilla.com>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-"use strict";
-
-const ERROR_TYPE = 'error',
-      UNCAUGHT_ERROR = 'An error event was dispatched for which there was'
-        + ' no listener.',
-      BAD_LISTENER = 'The event listener must be a function.';
-/**
- * This object is used to create an `EventEmitter` that, useful for composing
- * objects that emit events. It implements an interface like `EventTarget` from
- * DOM Level 2, which is implemented by Node objects in implementations that
- * support the DOM Event Model.
- * @see http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget
- * @see http://nodejs.org/api.html#EventEmitter
- * @see http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/events/EventDispatcher.html
- */
-const eventEmitter =  {
-  /**
-   * Registers an event `listener` that is called every time events of
-   * specified `type` are emitted.
-   * @param {String} type
-   *    The type of event.
-   * @param {Function} listener
-   *    The listener function that processes the event.
-   * @example
-   *      worker.on('message', function (data) {
-   *          console.log('data received: ' + data)
-   *      })
-   */
-  on: function on(type, listener) {
-    if ('function' !== typeof listener)
-      throw new Error(BAD_LISTENER);
-    let listeners = this._listeners(type);
-    if (0 > listeners.indexOf(listener))
-      listeners.push(listener);
-    // Use of `_public` is required by the legacy traits code that will go away
-    // once bug-637633 is fixed.
-    return this._public || this;
-  },
-
-  /**
-   * Registers an event `listener` that is called once the next time an event
-   * of the specified `type` is emitted.
-   * @param {String} type
-   *    The type of the event.
-   * @param {Function} listener
-   *    The listener function that processes the event.
-   */
-  once: function once(type, listener) {
-    this.on(type, function selfRemovableListener() {
-      this.removeListener(type, selfRemovableListener);
-      listener.apply(this, arguments);
-    });
-  },
-
-  /**
-   * Unregister `listener` for the specified event type.
-   * @param {String} type
-   *    The type of event.
-   * @param {Function} listener
-   *    The listener function that processes the event.
-   */
-  removeListener: function removeListener(type, listener) {
-    if ('function' !== typeof listener)
-      throw new Error(BAD_LISTENER);
-    let listeners = this._listeners(type),
-        index = listeners.indexOf(listener);
-    if (0 <= index)
-      listeners.splice(index, 1);
-    // Use of `_public` is required by the legacy traits code, that will go away
-    // once bug-637633 is fixed.
-    return this._public || this;
-  },
-
-  /**
-   * Hash of listeners on this EventEmitter.
-   */
-  _events: null,
-
-  /**
-   * Returns an array of listeners for the specified event `type`. This array
-   * can be manipulated, e.g. to remove listeners.
-   * @param {String} type
-   *    The type of event.
-   */
-  _listeners: function listeners(type) {
-    let events = this._events || (this._events = {});
-    return events[type] || (events[type] = []);
-  },
-
-  /**
-   * Execute each of the listeners in order with the supplied arguments.
-   * Returns `true` if listener for this event was called, `false` if there are
-   * no listeners for this event `type`.
-   *
-   * All the exceptions that are thrown by listeners during the emit
-   * are caught and can be handled by listeners of 'error' event. Thrown
-   * exceptions are passed as an argument to an 'error' event listener.
-   * If no 'error' listener is registered exception will propagate to a
-   * caller of this method.
-   *
-   * **It's recommended to have a default 'error' listener in all the complete
-   * composition that in worst case may dump errors to the console.**
-   *
-   * @param {String} type
-   *    The type of event.
-   * @params {Object|Number|String|Boolean}
-   *    Arguments that will be passed to listeners.
-   * @returns {Boolean}
-   */
-  _emit: function _emit(type, event) {
-    let args = Array.slice(arguments);
-    // Use of `_public` is required by the legacy traits code that will go away
-    // once bug-637633 is fixed.
-    args.unshift(this._public || this);
-    return this._emitOnObject.apply(this, args);
-  },
-
-  /**
-   * A version of _emit that lets you specify the object on which listeners are
-   * called.  This is a hack that is sometimes necessary when such an object
-   * (exports, for example) cannot be an EventEmitter for some reason, but other
-   * object(s) managing events for the object are EventEmitters.  Once bug
-   * 577782 is fixed, this method shouldn't be necessary.
-   *
-   * @param {object} targetObj
-   *    The object on which listeners will be called.
-   * @param {string} type
-   *    The event name.
-   * @param {value} event
-   *    The first argument to pass to listeners.
-   * @param {value} ...
-   *    More arguments to pass to listeners.
-   * @returns {boolean}
-   */
-  _emitOnObject: function _emitOnObject(targetObj, type, event /* , ... */) {
-    let listeners = this._listeners(type).slice(0);
-    // If there is no 'error' event listener then throw.
-    if (type === ERROR_TYPE && !listeners.length)
-      console.exception(event);
-    if (!listeners.length)
-      return false;
-    let params = Array.slice(arguments, 2);
-    for each (let listener in listeners) {
-      try {
-        listener.apply(targetObj, params);
-      } catch(e) {
-        this._emit('error', e);
-      }
-    }
-    return true;
-  },
-
-  /**
-   * Removes all the event listeners for the specified event `type`.
-   * @param {String} type
-   *    The type of event.
-   */
-  _removeAllListeners: function _removeAllListeners(type) {
-    this._listeners(type).splice(0);
-    return this;
-  }
-};
-exports.EventEmitter = require("./traits").Trait.compose(eventEmitter);
-exports.EventEmitterTrait = require('./light-traits').Trait(eventEmitter);