Deads kube rebase clean e2e

Final changes for a clean hack/test-end-to-end.sh run.  These look reasonable and require that you have https://github.com/openshift/docker-registry-extensions/pull/1.
This should be fixed by using `command: ["sh", "-c", "REGISTRY_URL=${REGISTRY_SERVICE_HOST}:${REGISTRY_SERVICE_PORT}", "other commands"]` in a future pull