HPCC-10408 - DFS supers were always assuming mixed width

As a consequence it was manually setting the replicate node #
as a property for each part descriptor in the super.
It should make no net difference, but was unecessary and
inefficient.

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5138 from jakesmith/hpcc-10408

HPCC-10408 - DFS supers were always assuming mixed width

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>