Problem

Administrators need to be able to delete licenses from their cluster.

Definition of Done

1. DELETE /api/v2/licenses/<id> endpoint working
2. CLI command coder licenses delete <id>

Acceptance Criteria

With a cluster that has a license uploaded

1. List licenses to get the ID.
   coder licenses list
2. Delete a license by ID
   coder licenses delete <id>
3. Verify the license no longer appears in coder licenses list