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

since neither are used any longer.

cluster/aws/util.sh

@@ -1601,16 +1601,6 @@ function ssh-to-node {
   ssh -oLogLevel=quiet -oConnectTimeout=30 -oStrictHostKeyChecking=no -i "${AWS_SSH_KEY}" ${SSH_USER}@${ip} "${cmd}"
 }
 
-# Restart the kube-proxy on a node ($1)
-function restart-kube-proxy {
-  ssh-to-node "$1" "sudo /etc/init.d/kube-proxy restart"
-}
-
-# Restart the kube-apiserver on a node ($1)
-function restart-apiserver {
-  ssh-to-node "$1" "sudo /etc/init.d/kube-apiserver restart"
-}
-
 # Perform preparations required to run e2e tests
 function prepare-e2e() {
   # (AWS runs detect-project, I don't think we need to anything)