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

Change-Id: I6e97c7ed6c0211dfafee83b9bdbea672e415fc49
Reviewed-on: https://gerrit.libreoffice.org/69715
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>