Removed a lot of defunct commented code related to HepMC/Generators (!32249) · Merge requests · atlas / athena · GitLab

Andrii Verbytskyi requested to merge averbyts/athena:HepMC3_Athena_Cleanup1 into master Apr 21, 2020

Removed a lot of defunct commented code related to HepMC manipulations

Predominantly these are code remnants of codes replaced with something else.
In some cases the removed codes are just commented non-standard debug output statements.
The commented '#include' statements related to HepMC/Generators were removed.

In one case a comment on an older comment from 2006 was added.