[ATR-20700] Use passthrough ComboHypo for jets
Required such that multi-leg b-jet chains may continue to process from the ComboHypo node at the end of the jet slice, with the per-leg IDs still in place.
Removes all framework combination computation from jet steps - requires this to be 100% handled in-house in the jet HypoAlg.
This was recently implemented on the jet side.
As the lack of per-leg IDs did not affect the jet-only multileg chains from accepting the event, we do not see any count changes here.