COMP: Removed unused parameters in itkThreadPoolTest.
COMP: Removed unused parameters in itkThreadPoolTest.

This addresses the following warning:

  /home/matt/src/ITK/Modules/Core/Common/test/itkThreadPoolTest.cxx:45:44:
  warning: unused parameter 'argv' [-Wunused-parameter]
   int itkThreadPoolTest(int argc, char* argv[])

when cross compiling with MinGW.
                                               ^

Change-Id: Idab6b6f5ac32bafb2d23936561009738bd20b9d3

richardbeare/ITK,PlutoniumHeart/ITK,biotrump/ITK,LucasGandel/ITK,fbudin69500/ITK,spinicist/ITK,LucHermitte/ITK,spinicist/ITK,Kitware/ITK,PlutoniumHeart/ITK,fbudin69500/ITK,LucHermitte/ITK,zachary-williamson/ITK,richardbeare/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,ajjl/ITK,fbudin69500/ITK,fbudin69500/ITK,LucasGandel/ITK,msmolens/ITK,atsnyder/ITK,blowekamp/ITK,Kitware/ITK,jmerkow/ITK,fedral/ITK,BRAINSia/ITK,thewtex/ITK,jcfr/ITK,atsnyder/ITK,jcfr/ITK,ajjl/ITK,spinicist/ITK,stnava/ITK,thewtex/ITK,spinicist/ITK,atsnyder/ITK,stnava/ITK,spinicist/ITK,jmerkow/ITK,BlueBrain/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,Kitware/ITK,malaterre/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,ajjl/ITK,thewtex/ITK,LucHermitte/ITK,stnava/ITK,stnava/ITK,stnava/ITK,BlueBrain/ITK,biotrump/ITK,biotrump/ITK,malaterre/ITK,thewtex/ITK,ajjl/ITK,vfonov/ITK,LucHermitte/ITK,LucasGandel/ITK,stnava/ITK,LucHermitte/ITK,hjmjohnson/ITK,blowekamp/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,ajjl/ITK,zachary-williamson/ITK,malaterre/ITK,blowekamp/ITK,zachary-williamson/ITK,malaterre/ITK,malaterre/ITK,jmerkow/ITK,msmolens/ITK,jmerkow/ITK,InsightSoftwareConsortium/ITK,fedral/ITK,BlueBrain/ITK,fedral/ITK,vfonov/ITK,BRAINSia/ITK,zachary-williamson/ITK,BRAINSia/ITK,BlueBrain/ITK,hjmjohnson/ITK,jcfr/ITK,blowekamp/ITK,richardbeare/ITK,zachary-williamson/ITK,jmerkow/ITK,hjmjohnson/ITK,hjmjohnson/ITK,BlueBrain/ITK,BlueBrain/ITK,atsnyder/ITK,zachary-williamson/ITK,atsnyder/ITK,msmolens/ITK,stnava/ITK,blowekamp/ITK,fedral/ITK,LucHermitte/ITK,BRAINSia/ITK,malaterre/ITK,zachary-williamson/ITK,biotrump/ITK,zachary-williamson/ITK,jcfr/ITK,PlutoniumHeart/ITK,msmolens/ITK,vfonov/ITK,LucasGandel/ITK,jmerkow/ITK,biotrump/ITK,PlutoniumHeart/ITK,vfonov/ITK,jcfr/ITK,hjmjohnson/ITK,blowekamp/ITK,LucasGandel/ITK,msmolens/ITK,spinicist/ITK,LucasGandel/ITK,BlueBrain/ITK,richardbeare/ITK,blowekamp/ITK,msmolens/ITK,biotrump/ITK,LucasGandel/ITK,fedral/ITK,stnava/ITK,atsnyder/ITK,vfonov/ITK,Kitware/ITK,fbudin69500/ITK,jmerkow/ITK,ajjl/ITK,thewtex/ITK,hjmjohnson/ITK,biotrump/ITK,hjmjohnson/ITK,spinicist/ITK,vfonov/ITK,ajjl/ITK,fedral/ITK,vfonov/ITK,spinicist/ITK,PlutoniumHeart/ITK,jcfr/ITK,BlueBrain/ITK,ajjl/ITK,atsnyder/ITK,malaterre/ITK,Kitware/ITK,msmolens/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,thewtex/ITK,stnava/ITK,vfonov/ITK,jcfr/ITK,fbudin69500/ITK,fbudin69500/ITK,jcfr/ITK,biotrump/ITK,LucHermitte/ITK,richardbeare/ITK,LucHermitte/ITK,thewtex/ITK,malaterre/ITK,richardbeare/ITK,zachary-williamson/ITK,msmolens/ITK,vfonov/ITK,atsnyder/ITK,InsightSoftwareConsortium/ITK,fedral/ITK,fedral/ITK,fbudin69500/ITK,spinicist/ITK,InsightSoftwareConsortium/ITK,PlutoniumHeart/ITK,BRAINSia/ITK,atsnyder/ITK,jmerkow/ITK,malaterre/ITK,richardbeare/ITK,Kitware/ITK,Kitware/ITK