Broken Links Removed

Per task https://dev.azure.com/msft-skilling/Content/_workitems/edit/154982

Hi @AbdullahBell I've removed the broken link. Please verify. Thanks!

Author: cmcclister

articles/ddos-protection/manage-permissions.md

@@ -39,7 +39,7 @@ To enable DDoS protection for a virtual network, your account must also be assig
 
 Creation of more than one plan is not required for most organizations. A plan cannot be moved between subscriptions. If you want to change the subscription a plan is in, you have to delete the existing plan and create a new one.
 
-For customers who have various subscriptions, and who want to ensure a single plan is deployed across their tenant for cost control, you can use Azure Policy to [restrict creation of Azure DDoS Protection plans](https://github.com/Azure/Azure-Network-Security/tree/master/Azure%20DDoS%20Protection/Azure%20Policy%20Definitions/Restrict%20creation%20of%20Azure%20DDoS%20Protection%20Standard%20Plans%20with%20Azure%20Policy). This policy will block the creation of any DDoS plans, unless the subscription has been previously marked as an exception. This policy will also show a list of all subscriptions that have a DDoS plan deployed but should not, marking them as out of compliance.
+For customers who have various subscriptions, and who want to ensure a single plan is deployed across their tenant for cost control, you can use Azure Policy to restrict creation of Azure DDoS Protection plans. This policy will block the creation of any DDoS plans, unless the subscription has been previously marked as an exception. This policy will also show a list of all subscriptions that have a DDoS plan deployed but should not, marking them as out of compliance.
 
 
 ## Next steps