TrigDecisionTool: remove ARA support
AthenaROOTAccesss (ARA) is no longer supported. And some of these scripts have not even been converted to Python3, so they are definitely unused.
Relates to ATEAM-871.
AthenaROOTAccesss (ARA) is no longer supported. And some of these scripts have not even been converted to Python3, so they are definitely unused.
Relates to ATEAM-871.