code: function removeEventListener (event, listener) {
      if (hasDOM()) {
        eventEmitter.removeEventListener(event, listener);
      } else if (hasEventEmitter()) {
        eventEmitter.removeListener(event, listener);
      }
    }
docs: [removeEventListener Removes event listener to the timer]
  @param  {string} event    [event to remove listener]
  @param  {function} listener [listener to remove]