Comment 2 for bug 2003567

According to [0], the storage object is provided by ceph-radosgw.

  ceph-radosgw:
    [...]
    channel: latest/stable
    charm: ceph-radosgw
    constraints: spaces=public-space
    num_units: 3
    options:
      region: RegionOne
      source: distro
    to:
    - lxd:0
    - lxd:1
    - lxd:2

Removing upstream swift and adding a task for ceph-radosgw.

[0] https://oil-jenkins.canonical.com/artifacts/a598c233-aa49-4ffa-99f3-125f13e89f81/generated/generated/openstack/bundle.yaml