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

Change-Id: I7bfeef47abaf94cfb355db95c0fdb928ce36c0a6
Reviewed-on: https://gerrit.libreoffice.org/60232
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>