Revert doc changes from #9652

Because the patch is not in 1.4, the v1.16 docs shouldn't have been
updated. Docs were promoted to v1.17 by #9742.

Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Merge pull request #9750 from icecrime/9652_revert_doc

Revert doc changes from #9652