The HOC functionality for REST that lives in fetch.jsx and fetcher.jsx isn't bad code by any means, but it's a hack that should be retired now we've got Redux store functionality in the main app.

If we can't replace it altogether yet, it should be at least moved back into blueocean-dashboard, as it has BO-specific details, dealing with the Config class. But ideally we can locate the few dependencies on it and upgrade them to work via Redux, and just dump it. Deleted code is the best code.