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

Change-Id: Icebcf1a6ab073dce935a74ce79ee0f302b62e8a8
Reviewed-on: https://gerrit.libreoffice.org/65947
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>