instead of home-grown linked list

Change-Id: I7cf24692e7b9919ac83e404e2d0167c3015b97de
Reviewed-on: https://gerrit.libreoffice.org/30569Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>