Currently we start kubelet as unscheduled. Before
containerizing kube. we needed to run kubelet before as
unscheduled to run the controller-manager, scheduler and
kube-proxy as static pods. There is no such need anymore.
Change-Id: I0e36606427530756d8084b643ba43880541bbe44
Partially-Implements: blueprint run-kube-as-container
Closes-Bug: #1726482