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

Change-Id: Ib32ea54a3fa690a0722fa75ddb4121ec78c0b64f
Reviewed-on: https://gerrit.libreoffice.org/65386
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>