Fix Tile simulation in AthenaMT (ATLASSIM-4053)
MT-unsafe mutable variable to keep granularity in time for hits has been removed as private member in TileG4SDCalc. Now it is calcuated and passed directly to clients.
MT-unsafe mutable variable to keep granularity in time for hits has been removed as private member in TileG4SDCalc. Now it is calcuated and passed directly to clients.