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

Change-Id: Ie6fb9f03f36d71e7b07ef70238d969db65121c8f
Reviewed-on: https://gerrit.libreoffice.org/61506
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>