Disable kubernetes-dashboard by default

In an effort to further reduce the footprint of the reference solution we are no longer going to deploy the kubernetes-dashboard* by default. The Skyscrapers team is using k9s as a tool to manage our clusters and we think its a worhty replacement. This tool can just run in your terminal and doesn’t require any deployments on the K8s side. If you have this workload enabled today we will reach out to you to check if you are using this and take action based on your input.

* Kubernetes Dashboard is a general purpose, web-based UI for Kubernetes clusters. It allows users to manage applications running in the cluster and troubleshoot them, as well as manage the cluster itself.