Eliminate unneeded init middleware.
Eliminate unneeded init middleware.

Instead, we its work when nrepl is started, in a future to save the
~500ms it takes.

kbaribeau/immutant,immutant/immutant,coopsource/immutant,immutant/immutant,kbaribeau/immutant,coopsource/immutant,immutant/immutant,kbaribeau/immutant,immutant/immutant,coopsource/immutant