Update sap-on-azure-overview.md

Removed the preview note for Azure Center for SAP solutions since it is no longer in preview.

Author: prakharchandna

articles/sap/sap-on-azure-overview.md

@@ -40,8 +40,6 @@ Azure Center for SAP solutions is a service that makes SAP a top-level workload
 
 For more information, see the [Azure Center for SAP solutions](center-sap-solutions/overview.md) documentation.
 
-[!INCLUDE [Preview content notice](./center-sap-solutions/includes/preview.md)]
-
 ## SAP on Azure deployment automation framework
 
 The SAP on Azure deployment automation framework is an open-source orchestration tool for deploying, installing and maintaining SAP environments.