lib/rtm-client.js
function(event, handler) {
    return events.off({
      listeners: this._listeners,
      event: event,
      handler: handler
    });
  }
function(event, handler) {
    return events.off({
      listeners: this._listeners,
      event: event,
      handler: handler
    });
  }
function ( event , handler ) { return events . off ( { listeners : this . _listeners , event : event , handler : handler } ) ; }
Unregister an event handler

@param {String} event
@param {Function} handler
Unregister an event handler