Revert "Merge branch 'mlops/add-model-experiments-entrypoint' into 'master'"

What does this MR do and why?

The original MR !111595 (merged) does not comply with navigation addition process, an issue has been opened with the proposal: #391619 (closed)

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.