delete role sap.hana.ide.roles::SecurityAdmin from hanacockpit

Hi I'm trying from Hana cockpit to delete the following roles that it's assigned to a technical user, with users however the delete about is grayed out for those roles. Any idea how can i delete those roles

sap.hana.ide.roles::SecurityAdmin

sap.hana.uis.db::SITE_USER

sap.hana.xs.lm.pe.roles::PE_Administrator

sap.hana.xs.lm.roles::Administrator

Looking forward and thank in advance!