Remove a (skopeo inspect) workaround for IBM Bluemix
Remove a (skopeo inspect) workaround for IBM Bluemix

AFAICT, “IBM Bluemix” has become “IBM Cloud”, and the “Bluemix” registry
is now (somehow related to?) icr.io; e.g.
https://cloud.ibm.com/docs/Registry?topic=Registry-registry_overview
lists bluemix.net and icr.io host names.

Randomly looking for a public image hosted on that registry, at least
> skopeo list-tags docker://icr.io/codeengine/firstjob
now succeeds.

So I’m assuming that at least the current cloud deployment now allows
listing tags, and does not need special handling. (It's unclear if
that is true for all existing deployments.)

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

mtrmac/skopeo,mtrmac/skopeo,mtrmac/skopeo