Removing duplicated and conflicting script steps

Customers were getting confused by the script block including two versions of the same thing, and that leading to an issue. The jwtClaimChecks version is unnecessary and can be removed.

Author: mattchenderson

articles/app-service/tutorial-auth-aad.md

@@ -262,10 +262,6 @@ You can set this via the same Azure CLI process you used in the previous step.
 authSettings=$(az webapp auth show -g myAuthResourceGroup -n <back-end-app-name>)
 authSettings=$(echo "$authSettings" | jq '.properties' | jq '.identityProviders.azureActiveDirectory.validation.defaultAuthorizationPolicy.allowedApplications += ["<front-end-app-id>"]')
 az webapp auth set --resource-group myAuthResourceGroup --name <back-end-app-name> --body "$authSettings"
-
-authSettings=$(az webapp auth show -g myAuthResourceGroup  -n <back-end-app-name>)
-authSettings=$(echo "$authSettings" | jq '.properties' | jq '.identityProviders.azureActiveDirectory.validation.jwtClaimChecks += { "allowedClientApplications": ["<front-end-app-id>"]}')
-az webapp auth set --resource-group myAuthResourceGroup --name <back-end-app-name> --body "$authSettings"
 ```
 
 ## 7. Frontend calls the authenticated backend