cluster-clean: drop workaround to a long-fixed k8s issue
cluster-clean: drop workaround to a long-fixed k8s issue

https://github.com/kubernetes/kubernetes/issues/65818 is supposedly fix
in all k8s versions relevant to us.

Signed-off-by: Dan Kenigsberg <184831158ae7531bcabc22617ed51e8717c81e93@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt