MdtCalibSvc → MagneticField Relation

File in MuonSpectrometer/MuonCalib/MdtCalib/MdtCalibSvc	Includes file in MagneticField
src / MdtCalibrationTool.cxx	MagFieldElements / MagFieldElements / AtlasFieldCache.h
src / MdtCalibrationTool.h	MagFieldConditions / MagFieldConditions / AtlasFieldCacheCondObj.h