Suggestion to deprecate the little used `sysadmin` management dashboard

@nedbat That would be great to find that out, yes - if we could have a good path to figure out the path in cases like this, that would make the switch to modules & APIs much faster. Currently we are blocked on core -> module conversions in a number of places because there isn’t a way to discuss/decide that.

@nimisha Do you think you could suggest something for this?

I’m also going to include a point about this in the agenda for the next Open edX Contributors Meetup.