fix validation error

Author: halkazwini

articles/route-server/tutorial-protect-route-server-ddos.md

@@ -79,15 +79,12 @@ In this section, you create an Azure Route Server. The virtual network and publi
     | Public IP address | Select **Create new**. |
     | Public IP address name | Enter ***myPublicIP***. |
 
-    :::image type="content" source="./media/tutorial-protect-route-server/create-virtual-network.png" alt-text="Screenshot of create virtual network and subnets.":::
-
 4. Select **Review + create**. 
 
 5. Select **Create**.
 
     [!INCLUDE [Deployment note](../../includes/route-server-note-creation-time.md)]
 
-
 ## Enable DDoS protection
 
 Azure DDoS Network is enabled at the virtual network where the resource you want to protect reside.