This is part of a global effort to clean up CloudKitty's
unmaintained codebase.
This storage backend was only present for development purposes,
and not production ready. A second v2 backend will be implemented
in the future, with support for HA/clustering.
Change-Id: Iab9d152d2851ca385e607d338c0a09b74ba7e3b3
Story: 2004400
Task: 28568