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

Change-Id: I48e3c5a62314baa11d6c53ce41311a9a0f1c661b
Reviewed-on: https://gerrit.libreoffice.org/62678
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>