Fix assert unreachable, remove unused variables (#13753)

Small code cleanup

packages/twenty-server/src/modules/messaging/message-cleaner/jobs/messaging-connected-account-deletion-cleanup.job.ts

@@ -1,4 +1,4 @@
-import { Logger, Scope } from '@nestjs/common';
+import { Scope } from '@nestjs/common';
 
 import { Process } from 'src/engine/core-modules/message-queue/decorators/process.decorator';
 import { Processor } from 'src/engine/core-modules/message-queue/decorators/processor.decorator';
@@ -15,10 +15,6 @@ export type MessagingConnectedAccountDeletionCleanupJobData = {
   scope: Scope.REQUEST,
 })
 export class MessagingConnectedAccountDeletionCleanupJob {
-  private readonly logger = new Logger(
-    MessagingConnectedAccountDeletionCleanupJob.name,
-  );
-
   constructor(
     private readonly messageCleanerService: MessagingMessageCleanerService,
   ) {}