If we move away from runserver, we can switch back.  Possible someone
will want to push commands into this, and away from the docker compose
file, but that's not the current state.

Also clean up some really old unused files I spotted while grepping
through the builds.

Analytics-Api will generally need to be built from a tag so that Insights
tests can run with that version.  Adding this line here to make it easier
to update when that process occurs.