Remove duplicate note on country/region code restrictions

Removed duplicate important note about enforcing country/region code restrictions in the relying party policy.

Author: bernawy

articles/active-directory-b2c/phone-based-mfa.md

@@ -144,12 +144,11 @@ To help prevent fraudulent sign-ups, remove any country/region codes that do not
       </RelyingParty>
     </TrustFrameworkPolicy>
     ```
+> [!IMPORTANT]
+>Add this code to the _relying party policy_ to enforce country/region code restrictions on the server side. You must not define these elements only in parent policies; put them in the relying party policy.
 
 1. In the `BuildingBlocks` section of this policy file, add the following code. Make sure to include only the country/region codes relevant to your organization:
 
-  > [!IMPORTANT]
->Add this code to the _relying party policy_ to enforce country/region code restrictions on the server side. You must not define these elements only in parent policies; put them in the relying party policy.
-
    ```xml
     <BuildingBlocks>