Merge pull request kubernetes#12444 from thockin/nix-cmd-kubernetes

Remove old 'kubernetes' cmd

Author: a-robinson

cmd/kubernetes/kubernetes.go

@@ -33,7 +33,6 @@ kube::golang::server_targets() {
     cmd/kube-controller-manager
     cmd/kubelet
     cmd/hyperkube
-    cmd/kubernetes
     cmd/linkcheck
     plugin/cmd/kube-scheduler
   )