message: Remove useless if statement
diff: @@ -72,10 +72,8 @@ export default class NotificationBadge extends React.PureComponent<XOR<IProps, I
  public componentWillUnmount() {
  SettingsStore.unwatchSetting(this.countWatcherRef);
  - if (this.props.notification) {
  this.props.notification.off(NOTIFICATION_STATE_UPDATE, this.onNotificationUpdate);
  }
  - }
  public componentDidUpdate(prevProps: Readonly<IProps>) {
  if (prevProps.notification) {
  