message: Remove extraneous paranoia
  The value is nullchecked later on.
diff: @@ -168,7 +168,7 @@ export default class AccountSettingsHandler extends MatrixClientBackedSettingsHa
  // This seems fishy - try and get the event for the new rooms
  const newType = this._getSettings(BREADCRUMBS_EVENT_TYPE);
  if (newType) val = newType['recent_rooms'];
  - else val = event.getContent()['rooms'] || [];
  + else val = event.getContent()['rooms'];
  } else if (event.getType() === BREADCRUMBS_EVENT_TYPE) {
  val = event.getContent()['recent_rooms'];
  } else {
  