[bug 14208] Remove ganglia.
Related to bug 14208.
This merge request remove ganglia's virtual machines from the ref-repo.
[En cours] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
[In progress] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
Related to bug 14208.
This merge request remove ganglia's virtual machines from the ref-repo.