delete registries 

Depends on https://github.com/CenturyLinkLabs/panamax-ui/pull/388

 84b6a33 is the only commit for this PR.
This part of code is related to https://github.com/CenturyLinkLabs/panamax-ui/pull/388 (see PR notes above). I've updated that PR and will rebase this one.