Code review comment for lp://staging/~allenap/gwacl/destroy-hosted-service

Please wait a bit to review and land this… we've got a problem with the underlying DestroyDeployment() method (I've tested it using example/management/run.go and it does not work [blows up trying to stop the VMs]… I thought the only problem is that we should ignore the error we get when stopping the VMs but it turns out it's a bit more involved).