Remove unused Geant4 dependency in InDetSimEvent
As part of ATLASSIM-3150 it was found that InDetSimEvent links to Geant4, but does not use any types from it. This MR removes the dependency and has been confirmed to compile locally.
As part of ATLASSIM-3150 it was found that InDetSimEvent links to Geant4, but does not use any types from it. This MR removes the dependency and has been confirmed to compile locally.