Remove the restart-kube-proxy and restart-apiserver functions

since neither are used any longer.

cluster/libvirt-coreos/util.sh

@@ -371,16 +371,6 @@ function ssh-to-node {
   ssh -o ConnectTimeout=30 -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ControlMaster=no "core@$machine" "$cmd"
 }
 
-# Restart the kube-proxy on a node ($1)
-function restart-kube-proxy {
-  ssh-to-node "$1" "sudo systemctl restart kube-proxy"
-}
-
-# Restart the apiserver
-function restart-apiserver {
-  ssh-to-node "$1" "sudo systemctl restart kube-apiserver"
-}
-
 # Perform preparations required to run e2e tests
 function prepare-e2e() {
     echo "libvirt-coreos doesn't need special preparations for e2e tests" 1>&2