fix merge issue

Author: brendan-kellam

packages/backend/src/index.ts

@@ -106,11 +106,8 @@ const listenToShutdownSignals = () => {
             await connectionManager.dispose()
             await repoPermissionSyncer.dispose()
             await accountPermissionSyncer.dispose()
-            await promClient.dispose()
             await configManager.dispose()
 
-            logger.info('Disposed all workers');
-
             await prisma.$disconnect();
             await redis.quit();
             await api.dispose();