Remove incorrect commented out code

Remove incorrect commented out code

These calls, if activated, are happening before null checks, so they
are not correct.  Also, the "in" variable is shadowed later.  Remove
them to avoid confusion and bad examples.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Reviewed-by: David Geier <geidav.pg@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/328e4371-9a4c-4196-9df9-1f23afc900df%40eisentraut.org