This was brought up by #2952 (comment)

I don't think the scripts psc, psci etc are providing any value any more, so I'd like to remove them. It's possible that some people are using them though, so I think we should wait until the next breaking release to remove them.

In the meantime I think we should start including the scripts in the Hackage source distribution, since people (eg, Homebrew) will be using that now instead of getting the source from GitHub, as the latter doesn't include a cabal file any more.