Sweeping !31654 from 21.3 to 21.9. Fix Unused class rule warning in MuonSimEvent (ATLASSIM-4476) (!31733) · Merge requests · atlas / athena · GitLab

Atlas Nightlybuild requested to merge cherry-pick-bc27550a3f-21.9 into 21.9 Apr 03, 2020

Fix Unused class rule warning in MuonSimEvent (ATLASSIM-4476)

See merge request !31654 (merged)