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

Change-Id: I444c43b9d549977039f25bec2b5bf666c3e15e0e
Reviewed-on: https://gerrit.libreoffice.org/62041
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>