Both @satnam6502 and E2E tests confirm: This code is no longer needed

Deletion is wonderful. The only weird thing was where to put the
message about the proxy URLs. Satnam suggested kubectl clusterinfo,
which seemed like a good option to put at the end of cluster turn-up.

cluster/azure/util.sh

@@ -561,11 +561,3 @@ function restart-kube-proxy {
 function restart-apiserver {
     ssh-to-node "$1" "sudo /etc/init.d/kube-apiserver restart"
 }
-
-function setup-logging-firewall {
-  echo "TODO: setup logging"
-}
-
-function teardown-logging-firewall {
-  echo "TODO: teardown logging"
-}