UPSTREAM: <carry>: Disable vSphere tests with pre-provisioned volumes

PersistentVolumeLabel admission plugin is not working in 4.16. because
there is no cloud provider initialized. Disable tests that need the
admission, i.e. vSphere pre-provisioned and in-line tests.

The tests were removed from upstream 1.30 release already, so no fix is
needed in 4.17.

Author: jsafrane