These shell scripts under tests/scripts are referenced nowhere in the
repository -- no workflow, Makefile, Go test, documentation, or
.mergify.yml invokes them:
- tests/scripts/multi-node/ (build-rook.sh, rpm-system-prerequisites.sh,
config.rb): the abandoned Vagrant multi-node VM harness, pinned to the
long-EOL centos/7 box.
- tests/scripts/kubeadm-install.sh: an old kubeadm/apt installer for a
pinned Kubernetes version, no longer wired into any test path.
Signed-off-by: Joshua Hoblitt <josh@hoblitt.com>