Remove feature flag ai_user_model_switching

Manoj M Jrequested to merge
mmj-remove-ff into master

What does this MR do and why?

Remove feature flag ai_user_model_switching

Changelog: other

Related to #569140 (comment 2911452690)

References

Screenshots or screen recordings

Before After

How to set up and validate locally

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Merge request reports