imaging_ml_data.py: no more mcparticles

benchmarks/far_forward/options/zdc_reconstruction.py

@@ -5,8 +5,6 @@ from GaudiKernel.SystemOfUnits import mm, MeV, rad, ns
 from Configurables import ApplicationMgr, EICDataSvc, PodioOutput, GeoSvc
 
 from Configurables import PodioInput
-from Configurables import Jug__Base__InputCopier_dd4pod__Geant4ParticleCollection_dd4pod__Geant4ParticleCollection_ as MCCopier
-from Configurables import Jug__Base__InputCopier_dd4pod__CalorimeterHitCollection_dd4pod__CalorimeterHitCollection_ as CalCopier
 from Configurables import Jug__Digi__CalorimeterHitDigi as CalHitDigi
 from Configurables import Jug__Reco__CalorimeterHitReco as CalHitReco
 from Configurables import Jug__Reco__CalorimeterHitsMerger as CalHitsMerge