Update how-to-connect-with-managed-identity.md

Removed Preview

Author: kabharati

articles/postgresql/flexible-server/how-to-connect-with-managed-identity.md

@@ -13,13 +13,10 @@ ms.custom:
   - devx-track-azurecli
 ---
 
-# Connect with Managed Identity to Azure Database for PostgreSQL Flexible Server Preview
+# Connect with Managed Identity to Azure Database for PostgreSQL Flexible Server
 
 [!INCLUDE [applies-to-postgresql-Flexible-server](../includes/applies-to-postgresql-Flexible-server.md)]
 
-> [!NOTE]  
-> Azure Active Directory Authentication for PostgreSQL Flexible Server is currently in preview.
-
 You can use both system-assigned and user-assigned managed identities to authenticate to Azure Database for PostgreSQL. This article shows you how to use a system-assigned managed identity for an Azure Virtual Machine (VM) to access an Azure Database for PostgreSQL server. Managed Identities are automatically managed by Azure and enable you to authenticate to services that support Azure AD authentication without needing to insert credentials into your code.
 
 You learn how to:
@@ -196,4 +193,4 @@ Postgres version: PostgreSQL 11.11, compiled by Visual C++ build 1800, 64-bit
 
 ## Next steps
 
-- Review the overall concepts for [Azure Active Directory authentication with Azure Database for PostgreSQL](concepts-azure-ad-authentication.md)
+- Review the overall concepts for [Azure Active Directory authentication with Azure Database for PostgreSQL](concepts-azure-ad-authentication.md)