Revert "Respect group setting for Experiment and Beta features"

What does this MR do and why?

Revert "Merge branch 'tchu-add-settings-to-dev-guide-for-experiments-and-beta' into 'master'"

This reverts merge request !150698 (merged)

Given discussion in !150916 (comment 1895555925)

I am reverting these changes because those settings are being changed to limit to AI experiment and beta features only.

MR acceptance checklist

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

Screenshots or screen recordings

Docs only

How to set up and validate locally

N/A