message: remove stale unused import
diff: @@ -50,7 +50,6 @@ import CallHandler from "./CallHandler";
  import { guessAndSetDMRoom } from "./Rooms";
  import { upgradeRoom } from './utils/RoomUpgrade';
  import UploadConfirmDialog from './components/views/dialogs/UploadConfirmDialog';
  -import ErrorDialog from './components/views/dialogs/ErrorDialog';
  import DevtoolsDialog from './components/views/dialogs/DevtoolsDialog';
  import RoomUpgradeWarningDialog from "./components/views/dialogs/RoomUpgradeWarningDialog";
  import InfoDialog from "./components/views/dialogs/InfoDialog";
  