Merge pull request #34458 from markingmyname/links

[SQL MI] remove all customer use cases as those links no longer work

Author: denrea

azure-sql/managed-instance/frequently-asked-questions-faq.yml

@@ -532,10 +532,6 @@ sections:
     questions:
       - question: Where can I find use cases and resulting cost savings with SQL Managed Instance?
         answer: |
-          SQL Managed Instance case studies:
-
-          - [PowerDETAILS](https://customers.microsoft.com/story/powerdetails-partner-professional-services-azure-sql-database-managed-instance)
-
           To get a better understanding of the benefits, costs, and risks associated with deploying Azure SQL Managed Instance, there's also a Forrester study: [The Total Economic Impact of Microsoft Azure SQL Managed Instance databases](https://azure.microsoft.com/resources/forrester-tei-sql-database-managed-instance).
 
   - name: Password policy