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

Change-Id: If18c80fc64e55d797953e24e40e5d5e62bd9c625
Reviewed-on: https://gerrit.libreoffice.org/63453
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
(cherry picked from commit 492ea7e0)
Reviewed-on: https://gerrit.libreoffice.org/63768Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>