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

Change-Id: Iaef3e980a96e8a831458e42540795b922bec5ab4
Reviewed-on: https://gerrit.libreoffice.org/58810
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>