refactor: Remove cosmosdb recommendation 9cabded7-a1fc-6e4a-944b-d7dd98ea31a2

[arthurclares]

Overview/Summary

This PR removes the recommendation 9cabded7-a1fc-6e4a-944b-d7dd98ea31a2 as requested by Santosh Hari.

As part of this pull request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues or ADO Work Items (Internal Only)
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Ensured PR tests are passing
• Performed testing and provided evidence (e.g. screenshot of output) for any changes associated to ARG queries
• Updated relevant and associated documentation (e.g. Contribution Guide, Docs etc.)

[Copilot]

Pull Request Overview

This PR removes a specific Azure Cosmos DB recommendation (9cabded7-a1fc-6e4a-944b-d7dd98ea31a2) that was previously advising users to enable service-managed failover for multi-region accounts with single write regions.

• Removed recommendation entry from the YAML configuration file
• Deleted the associated KQL query file for the recommendation

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
azure-resources/DocumentDB/databaseAccounts/recommendations.yaml	Removed the service-managed failover recommendation entry
azure-resources/DocumentDB/databaseAccounts/kql/9cabded7-a1fc-6e4a-944b-d7dd98ea31a2.kql	Deleted the KQL query file that identified Cosmos DB accounts without automatic failover

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[tomtronic]

@arthurclares @desinole - please clarify why we are removing this recommendation. Thanks!

https://learn.microsoft.com/en-us/azure/reliability/reliability-cosmos-db-nosql#service-managed-failover