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

Change-Id: Ib420e9216b8313f5ed7634ec375e39ceb741fd45
Reviewed-on: https://gerrit.libreoffice.org/59297
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>