fix: rm unused imports

Author: micaelae

app/scripts/metamask-controller.js

@@ -376,11 +376,6 @@ import {
   rejectAllApprovals,
   rejectOriginApprovals,
 } from './lib/approval/utils';
-import {
-  handleBridgeTransactionComplete,
-  handleBridgeTransactionFailed,
-  handleTransactionFailedTypeBridge,
-} from './lib/bridge-status/metrics';
 import { InstitutionalSnapControllerInit } from './controller-init/institutional-snap/institutional-snap-controller-init';
 import {
   ///: BEGIN:ONLY_INCLUDE_IF(multichain)