Remove call to `recursiveClustering'`

Also removed some dead and commented code around the edited area.

Note: `recursiveClustering'` was not actually recursive, it just went
one level deeper.
4 jobs for 437-nodegraph-remove-the-automatic-call in 52 minutes and 24 seconds (queued for 43 minutes and 15 seconds)
Status Job ID Name Coverage
  Cabal
passed #16719
cabal

00:20:45

 
  Stack
passed #16720
stack

00:06:25

 
  Bench
manual #16721
allowed to fail manual
bench
 
  Test
passed #16722
test

00:25:13