delete ubuntu kube-up

[mikedanese]

Remove deprecated ubuntu kube-up deployment.

[k8s-reviewable]

This change is 

[resouer]

Must update this doc: https://kubernetes.io/docs/setup/pick-right-solution/

[roberthbailey]

@resouer - we'll need to upgrade that guide in a separate PR since it's in a different repo.
@mikedanese - please send a follow up PR to fix the getting started guides.

/lgtm

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mikedanese, roberthbailey

Needs approval from an approver in each of these OWNERS Files:

• cluster/OWNERS [mikedanese,roberthbailey]

You can indicate your approval by writing /approve in a comment
You can cancel your approval by writing /approve cancel in a comment

[k8s-github-robot]

@k8s-bot test this [submit-queue is verifying that this PR is safe to merge]

[k8s-github-robot]

Automatic merge from submit-queue (batch tested with PRs 44343, 44344)

[k8s-ci-robot]

@mikedanese: The following test(s) failed:

Test name	Commit	Details	Rerun command
Jenkins GCE etcd3 e2e	e8a3e2d	link	@k8s-bot gce etcd3 e2e test this

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[A-j-K]

You might like to update the online documentation when you pull major parts like this, save us wasting a morning

https://kubernetes.io/docs/getting-started-guides/ubuntu/manual/