[8.x] Removes 199791 from the 8.16.1 release notes (backport #6207)

[mergify]

Addresses this comment and removes 199791 from the 8.16.1 release notes.

Preview:https://security-docs_bk_6207.docs-preview.app.elstc.co/guide/en/security/master/release-notes-header-8.16.0.html

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This is an automatic backport of pull request #6207 done by Mergify.

[mergify]

Cherry-pick of 6bafdb8 has failed:

On branch mergify/bp/8.x/pr-6207
Your branch is up to date with 'origin/8.x'.

You are currently cherry-picking commit 6bafdb81.
  (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/release-notes/8.16.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/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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