Remove dead code: Probe Workspaces

[corneliusludmann]

In the past, we used probe workspaces to check if a workspace cluster is working:

gitpod/components/server/ee/src/workspace/workspace-health-monitoring.ts

Lines 35 to 36 in 1c0ee09

	// startWorkspaceProbe creates and starts a new workspace which is independent of external services and curls a response URL as init task
	async startWorkspaceProbe(ctx: TraceContext, responseURL: string, responseToken: string): Promise<void> {

However, we do not support and use probe workspaces anymore. We should remove all the dead code around probe workspace. That includes:

• The function mentioned above.
• The workspace templates for probe workspaces.
• Maybe other references of probe workspaces in the repo.

More context: https://gitpod.slack.com/archives/C02F19UUW6S/p1646075269171699 (internal)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[geropl]

Closing because it's marked as "done".