VMware: test_driver_api...test_snapshot_delete_vm_snapshot* need to be fixed

[Vui Lam]

once converted to use oslo.vmware,
these test cases, test_driver_api.VMwareAPIVMTestCase.test_snapshot_delete_vm_snapshot* are failing:
http://logs.openstack.org/75/70175/43/check/gate-nova-python27/c714fde/console.html

This is most likely related unintended consequence of mocking time.sleep
These tests are currently proposed to be skipped but we should look to provide an fix for the test cases as soon as possible.

A separate patch was posted to demonstrate the potential cause. See lone diff between patch 1 (which fails the above-mentioned tests) and patch 3 (which doesn't)
https://review.openstack.org/#/c/117897/1..3/nova/tests/virt/vmwareapi/test_driver_api.py

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/117944

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vui Lam (<email address hidden>) on branch: master
Review: https://review.openstack.org/117944

[Davanum Srinivas (DIMS) (dims-v)]

Following the comments in the review, i believe this was already fixed elsewhere. So marking this as fixed.