COMP: Drop unused InputPixelType typedefs in CopyIterationBenchmark

CopyRegionIterator and CopyScanlineIterator (examples/Core/itkCopyIterationBenchmark.cxx)
each declared a local `using InputPixelType = typename TInputImage::PixelType;`
that was never referenced — the loop bodies cast directly via
`static_cast<OutputPixelType>(inputIt.Get())`, so InputPixelType is dead.

Triggers -Wunused-local-typedefs at lines 119 and 142 under gcc.
Remove the two unused typedefs; the other two functions in this file
(CopyImageRegionRange, and the * / * typed-copy variant at line 187)
legitimately use both InputPixelType and OutputPixelType and are left
unchanged.

Author: hjmjohnson

examples/Core/itkCopyIterationBenchmark.cxx

@@ -116,7 +116,6 @@ template <typename TInputImage, typename TOutputImage>
 void
 CopyRegionIterator(const TInputImage * inputPtr, TOutputImage * outputPtr)
 {
-  using InputPixelType = typename TInputImage::PixelType;
   using OutputPixelType = typename TOutputImage::PixelType;
   using ImageRegionConstIterator = itk::ImageRegionConstIterator<TInputImage>;
   using ImageRegionIterator = itk::ImageRegionIterator<TOutputImage>;
@@ -139,7 +138,6 @@ template <typename TInputImage, typename TOutputImage>
 void
 CopyScanlineIterator(const TInputImage * inputPtr, TOutputImage * outputPtr)
 {
-  using InputPixelType = typename TInputImage::PixelType;
   using OutputPixelType = typename TOutputImage::PixelType;
   using ImageScanlineConstIterator = itk::ImageScanlineConstIterator<TInputImage>;
   using ImageScanlineIterator = itk::ImageScanlineIterator<TOutputImage>;