Remove ironic-grenade-dsvm
Remove ironic-grenade-dsvm

The job is not required anymore since grenade is using
the zuulv3 ironic-grenade[1]

[1] https://review.opendev.org/#/c/731773/

Change-Id: I616a238bfb7864bf8752ec1475c8f611b2d28493

openstack/ironic,openstack/ironic