Remove unused AI code
What does this MR do and why?
- Notice these references in the frontend to
aiExperimentation, which was deleted: https://gitlab.com/gitlab-org/gitlab/-/issues/423979#note_1631575314 - Also some unused methods/constants
How to set up and validate locally
This removed unused code only
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by Jessie Young