Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.

Change-Id: I8174b6e684b5b46a8abd3ca825b7de75f9255df3
Reviewed-on: https://gerrit.libreoffice.org/68703
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>