Remove West Central US from IPAM GA region availability list

Author: andreamichaelmsft

includes/virtual-network-manager-ipam.md

@@ -36,8 +36,7 @@ ms.custom: include-file, references_regions
 > - Taiwan North
 > - UAE Central
 > - UK South
-> - West Central US
 > - West US
 > - West US 2
 > 
-> All other regions are in preview. This preview version is provided without a service-level agreement, and we don't recommend it for production workloads. Certain features might not be supported or might have constrained capabilities. For more information, see [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
+> All other regions are in preview. This preview version is provided without a service-level agreement, and we don't recommend it for production workloads. Certain features might not be supported or might have constrained capabilities. For more information, see [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).