TF-3385 Revert undo operation handling

lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart

@@ -253,7 +253,6 @@ class MailboxDashBoardController extends ReloadableController
   StreamSubscription? _pendingSharedFileInfoSubscription;
   StreamSubscription? _receivingFileSharingStreamSubscription;
   StreamSubscription? _currentEmailIdInNotificationIOSStreamSubscription;
-  List<PresentationEmail> emailsToBeUndo = [];
 
   final StreamController<Either<Failure, Success>> _progressStateController =
     StreamController<Either<Failure, Success>>.broadcast();

lib/features/mailbox_dashboard/presentation/extensions/move_emails_to_mailbox_extension.dart

@@ -24,13 +24,8 @@ extension MoveEmailsToMailboxExtension on MailboxDashBoardController {
       .where((email) => movedEmailIds.contains(email.id))
       .toList();
     if (currentEmailsToBeMoved.isNotEmpty && destinationMailboxId != selectedMailbox.value?.id) {
-      emailsToBeUndo = currentEmailsToBeMoved;
       currentEmails.removeWhere(currentEmailsToBeMoved.contains);
       updateEmailList(currentEmails);
-    } else if (moveAction == MoveAction.undo && destinationMailboxId == selectedMailbox.value?.id) {
-      currentEmails.addAll(emailsToBeUndo);
-      currentEmails.sort((a, b) => b.receivedAt?.value.compareTo(a.receivedAt?.value ?? DateTime.now()) ?? -1);
-      updateEmailList(currentEmails);
     }
   }
 }