Python: Remove bad dependency

[larohra]

Motivation and Context

Description

Remove unused bad dependency

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the Contribution Guidelines
• All unit tests pass, and I have added new tests where possible
• Is this a breaking change? If yes, add "[BREAKING]" prefix to the title of the PR.

[Copilot]

Pull request overview

Removes an unused/undesired Python dependency from Azure Functions workflow hosting samples to keep sample environments minimal and avoid pulling in an unnecessary package.

Changes:

• Removed agents-maf from requirements.txt for the 09_workflow_shared_state sample.
• Removed agents-maf from requirements.txt for the 12_workflow_hitl sample.

Reviewed changes

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

File	Description
python/samples/04-hosting/azure_functions/09_workflow_shared_state/requirements.txt	Drops agents-maf from the sample’s dependency list.
python/samples/04-hosting/azure_functions/12_workflow_hitl/requirements.txt	Drops agents-maf from the sample’s dependency list.

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