Remove parens

Author: MikeRayMSFT

articles/azure-arc/data/using-extensions-in-postgresql-hyperscale-server-group.md

@@ -55,7 +55,7 @@ For details about that are `shared_preload_libraries`, read the PostgreSQL docum
 
 ### Add an extension at the creation time of a server group
 ```azurecli
-az postgres arc-server create -n <name of your postgresql server group> --extensions <extension names> --k8s-namespace <namespace> --use-k8s (((((((((((((((((((((((((((((((((((())))))))))))))))))))))))))))))))))))
+az postgres arc-server create -n <name of your postgresql server group> --extensions <extension names> --k8s-namespace <namespace> --use-k8s
 ```
 ### Add an extension to an instance that already exists
 ```azurecli