Remove Storage mock.
Depends on swh-storage!133 (closed), swh-storage!134 (closed), swh-loader-core!13 (closed), swh-loader-core!14 (closed), swh-loader-core!15 (closed).
Migrated from D721 (view on Phabricator)
Depends on swh-storage!133 (closed), swh-storage!134 (closed), swh-loader-core!13 (closed), swh-loader-core!14 (closed), swh-loader-core!15 (closed).
Migrated from D721 (view on Phabricator)