remove empty line

Author: zhiyuanliang-ms

articles/azure-app-configuration/concept-customer-managed-keys.md

@@ -107,7 +107,6 @@ After these resources are configured, use the following steps so that the Azure
     > [!NOTE]
     > When using a user-assigned managed identity to access the managed key, you can specify its client id explicitly by adding `--identity-client-id <client id of your user assigned identity>` to the command.
 
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 Your Azure App Configuration instance is now configured to use a customer-managed key stored in Azure Key Vault.
 
 ## Next Steps