Remove versionId, versionInfo, versionList from examples

I recall these attributes being discussed at one point
(pre-incubation?), but have never been supported by OpenStack and don't
appear to be defined in any v2.0 WADL/XSD specification.

Change-Id: Ia5b691972c70456e3d62750173e2bfc6e9aec55a
Closes-Bug: 1273831
Merge "Remove versionId, versionInfo, versionList from examples"