Merge pull request #176581 from tanuballa/patch-147

remove preview tag

Author: PRMerger5

articles/expressroute/expressroute-howto-add-gateway-portal-resource-manager.md

@@ -45,11 +45,6 @@ The steps for this task use a VNet based on the values in the following configur
 
 You can view a [Video](https://azure.microsoft.com/documentation/videos/azure-expressroute-how-to-create-a-vpn-gateway-for-your-virtual-network) of these steps before beginning your configuration.
 
-> [!IMPORTANT]
-> IPv6 support for private peering is currently in **Public Preview**. If you would like to connect your virtual network to an ExpressRoute circuit with IPv6-based private peering configured, please make sure that your virtual network is dual stack and follows the guidelines for [IPv6 for Azure VNet](../virtual-network/ipv6-overview.md).
-> 
-> 
-
 ## Create the gateway subnet
 
 1. In the [portal](https://portal.azure.com), navigate to the Resource Manager virtual network for which you want to create a virtual network gateway.
@@ -103,4 +98,4 @@ If you no longer need the ExpressRoute gateway, locate the gateway in the virtua
 After you've created the VNet gateway, you can link your VNet to an ExpressRoute circuit. 
 
 > [!div class="nextstepaction"]
-> [Link a Virtual Network to an ExpressRoute circuit](expressroute-howto-linkvnet-portal-resource-manager.md)
+> [Link a Virtual Network to an ExpressRoute circuit](expressroute-howto-linkvnet-portal-resource-manager.md)