message: remove redundant&stale onKeyDown
diff: @@ -51,7 +51,7 @@ export default React.createClass({
  <label htmlFor="textinput"> { _t('Room name (optional)') } </label>
  </div>
  <div>
  - <input id="textinput" ref="textinput" className="mx_CreateRoomDialog_input" autoFocus={true} size="64" onKeyDown={this.onKeyDown} />
  + <input id="textinput" ref="textinput" className="mx_CreateRoomDialog_input" autoFocus={true} size="64" />
  </div>
  <br />
  