[8.11] Remove note that's in progress (backport #4197)

[mergify]

This is an automatic backport of pull request #4197 done by Mergify.
Cherry-pick of ea67a3c has failed:

On branch mergify/bp/8.11/pr-4197
Your branch is up to date with 'origin/8.11'.

You are currently cherry-picking commit ea67a3cf.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   docs/detections/rules-ui-create.asciidoc

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[github-actions]

Documentation previews:

• ✨ HTML diff
• 📙 Elastic Security Guide

[mergify]

This pull request is now in conflicts. Could you fix it @mergify[bot]? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/8.11/pr-4197 upstream/mergify/bp/8.11/pr-4197
git merge upstream/8.11
git push upstream mergify/bp/8.11/pr-4197

[nastasha-solomon]

Fixed in #4199.