COMP: remove Python future statement for print_function.
COMP: remove Python future statement for print_function.

For Python2.5

KitwareMedical/TubeTK,aylward/ITKTubeTK,cdeepakroy/TubeTK,aylward/ITKTubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/TubeTK,LucasGandel/TubeTK,aylward/ITKTubeTK,matthieuheitz/TubeTK,KitwareMedical/ITKTubeTK,cdeepakroy/TubeTK,thewtex/TubeTK,KitwareMedical/ITKTubeTK,sumedhasingla/TubeTK,sumedhasingla/TubeTK,KitwareMedical/TubeTK,cdeepakroy/TubeTK,KitwareMedical/TubeTK,matthieuheitz/TubeTK,thewtex/TubeTK,thewtex/TubeTK,matthieuheitz/TubeTK,KitwareMedical/ITKTubeTK,aylward/ITKTubeTK,sumedhasingla/TubeTK,sumedhasingla/TubeTK,matthieuheitz/TubeTK,LucasGandel/TubeTK,LucasGandel/TubeTK,LucasGandel/TubeTK,cdeepakroy/TubeTK,thewtex/TubeTK