COMP: Fixed warning of unused variable
COMP: Fixed warning of unused variable

KitwareMedical/ITKTubeTK,aylward/ITKTubeTK,thewtex/TubeTK,KitwareMedical/ITKTubeTK,thewtex/TubeTK,KitwareMedical/ITKTubeTK,aylward/ITKTubeTK,KitwareMedical/ITKTubeTK,thewtex/TubeTK,thewtex/TubeTK,aylward/ITKTubeTK,aylward/ITKTubeTK