ENH: Remove CMake version check in ITKModuleHeaderTest.cmake
ENH: Remove CMake version check in ITKModuleHeaderTest.cmake

Our cmake_minimum_required version is now 2.8.9, so this is not necessary.

Change-Id: I6875300117f5fa462cbaca487862186d77bcb5ee

InsightSoftwareConsortium/ITK,vfonov/ITK,spinicist/ITK,malaterre/ITK,LucasGandel/ITK,malaterre/ITK,vfonov/ITK,stnava/ITK,stnava/ITK,fbudin69500/ITK,stnava/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,stnava/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,Kitware/ITK,zachary-williamson/ITK,BRAINSia/ITK,hjmjohnson/ITK,blowekamp/ITK,stnava/ITK,malaterre/ITK,blowekamp/ITK,LucasGandel/ITK,spinicist/ITK,PlutoniumHeart/ITK,BRAINSia/ITK,LucasGandel/ITK,blowekamp/ITK,blowekamp/ITK,zachary-williamson/ITK,hjmjohnson/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,LucasGandel/ITK,PlutoniumHeart/ITK,PlutoniumHeart/ITK,spinicist/ITK,LucasGandel/ITK,fbudin69500/ITK,jcfr/ITK,vfonov/ITK,thewtex/ITK,Kitware/ITK,hjmjohnson/ITK,Kitware/ITK,Kitware/ITK,blowekamp/ITK,stnava/ITK,zachary-williamson/ITK,BRAINSia/ITK,zachary-williamson/ITK,malaterre/ITK,richardbeare/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,LucasGandel/ITK,hjmjohnson/ITK,PlutoniumHeart/ITK,spinicist/ITK,fbudin69500/ITK,stnava/ITK,fbudin69500/ITK,Kitware/ITK,richardbeare/ITK,hjmjohnson/ITK,jcfr/ITK,thewtex/ITK,jcfr/ITK,LucasGandel/ITK,spinicist/ITK,malaterre/ITK,vfonov/ITK,stnava/ITK,blowekamp/ITK,vfonov/ITK,malaterre/ITK,InsightSoftwareConsortium/ITK,fbudin69500/ITK,thewtex/ITK,jcfr/ITK,zachary-williamson/ITK,zachary-williamson/ITK,spinicist/ITK,BRAINSia/ITK,spinicist/ITK,jcfr/ITK,LucasGandel/ITK,richardbeare/ITK,richardbeare/ITK,BRAINSia/ITK,fbudin69500/ITK,vfonov/ITK,spinicist/ITK,hjmjohnson/ITK,richardbeare/ITK,PlutoniumHeart/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,jcfr/ITK,BRAINSia/ITK,hjmjohnson/ITK,zachary-williamson/ITK,zachary-williamson/ITK,malaterre/ITK,malaterre/ITK,blowekamp/ITK,Kitware/ITK,fbudin69500/ITK,stnava/ITK,thewtex/ITK,fbudin69500/ITK,vfonov/ITK,PlutoniumHeart/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,thewtex/ITK,zachary-williamson/ITK,malaterre/ITK,jcfr/ITK,jcfr/ITK,richardbeare/ITK,PlutoniumHeart/ITK,spinicist/ITK