graph, don't render tooltips on z label
Little error only present in console. No value to shown in tooltips for graph Z label, so don't render a tooltip.
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
Little error only present in console. No value to shown in tooltips for graph Z label, so don't render a tooltip.