rm extra privilege

Author: b-ahibbard

articles/azure-netapp-files/includes/create-volume-permission.md

@@ -14,6 +14,5 @@ ms.author: anfdocs
 >[!IMPORTANT]
 >To create a volume or write a volume resource, you must have the following permissions configured on the IAM role:
 > * `Microsoft.Network/virtualNetworks/subnets/read`
-> * `Microsoft.Network/virtualNetworks/read`
 > * `Microsoft.Network/virtualNetworks/subnets/join/action`
 > For more information about permissions and to confirm what permissions are configured, see [Create or update Azure custom roles using the Azure portal](../../role-based-access-control/custom-roles-portal.md).