STYLE: Default copy and move of ImageIterator

Using `ITK_DEFAULT_COPY_AND_MOVE`.

Modules/Core/Common/include/itkImageIterator.h

@@ -65,6 +65,8 @@ template <typename TImage>
 class ITK_TEMPLATE_EXPORT ImageIterator : public ImageConstIterator<TImage>
 {
 public:
+ ITK_DEFAULT_COPY_AND_MOVE(ImageIterator);
+
  /** Standard class type aliases. */
  using Self = ImageIterator;
 
@@ -96,19 +98,10 @@ class ITK_TEMPLATE_EXPORT ImageIterator : public ImageConstIterator<TImage>
  /** Default Destructor */
  ~ImageIterator() override = default;
 
- /** Copy Constructor. The copy constructor is provided to make sure the
- * handle to the image is properly reference counted. */
- ImageIterator(const Self & it);
-
  /** Constructor establishes an iterator to walk a particular image and a
  * particular region of that image. */
  ImageIterator(TImage * ptr, const RegionType & region);
 
- /** operator= is provided to make sure the handle to the image is properly
- * reference counted. */
- Self &
- operator=(const Self & it);
-
  /** Set the pixel value */
  void
  Set(const PixelType & value) const

Modules/Core/Common/include/itkImageIterator.hxx

@@ -22,14 +22,6 @@
 namespace itk
 {
 
-//----------------------------------------------------------------------
-// Constructor
-//----------------------------------------------------------------------
-template <typename TImage>
-ImageIterator<TImage>::ImageIterator(const Self & it)
- : ImageConstIterator<TImage>(it)
-{}
-
 //----------------------------------------------------------------------
 // Constructor
 //----------------------------------------------------------------------
@@ -57,17 +49,6 @@ ImageIterator<TImage>::operator=(const ImageConstIterator<TImage> & it)
  return *this;
 }
 
-//----------------------------------------------------------------------
-// Assignment Operator
-//----------------------------------------------------------------------
-template <typename TImage>
-ImageIterator<TImage> &
-ImageIterator<TImage>::operator=(const Self & it)
-{
- this->ImageConstIterator<TImage>::operator=(it);
- return *this;
-}
-
 } // end namespace itk
 
 #endif