Use the barcode-based version of HepMC::is_truth_suppressed_pileup in legacy TP converters
Ensure that the barcode-based version of HepMC::is_truth_suppressed_pileup is used in legacy TP converter classes. Follows on from !69076 (merged) and !69203 (merged). This will allow further clean-up in !73117 (merged).
Edited by John Derek Chapman