COMP: Remove GetMTime method

To address:

  d:\a\1\s\include\itkTwoProjectionImageRegistrationMethod.h(204): error C2555: 'itk::TwoProjectionImageRegistrationMethod<InternalImageType,InternalImageType>::GetMTime': overriding virtual function return type differs and is not covariant from 'itk::Object::GetMTime'

If the Set macros are used correctly, this is not necessary.

Author: thewtex

include/itkTwoProjectionImageRegistrationMethod.h

@@ -199,10 +199,6 @@ class TwoProjectionImageRegistrationMethod : public ProcessObject
   using Superclass::MakeOutput;
   DataObjectPointer MakeOutput( DataObjectPointerArraySizeType idx) override;
 
-  /** Method to return the latest modified time of this object or
-   * any of its cached ivars */
-  unsigned long GetMTime() const override;
-
 protected:
   TwoProjectionImageRegistrationMethod();
   ~TwoProjectionImageRegistrationMethod() override {};

include/itkTwoProjectionImageRegistrationMethod.hxx

@@ -58,71 +58,6 @@ TwoProjectionImageRegistrationMethod<TFixedImage,TMovingImage>
 }
 
 
-template < typename TFixedImage, typename TMovingImage >
-unsigned long
-TwoProjectionImageRegistrationMethod<TFixedImage,TMovingImage>
-::GetMTime() const
-{
-  unsigned long mtime = Superclass::GetMTime();
-  unsigned long m;
-
-
-  // Some of the following should be removed once ivars are put in the
-  // input and output lists
-
-  if (m_Transform)
-    {
-    m = m_Transform->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_Interpolator1)
-    {
-    m = m_Interpolator1->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_Interpolator2)
-    {
-    m = m_Interpolator2->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_Metric)
-    {
-    m = m_Metric->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_Optimizer)
-    {
-    m = m_Optimizer->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_FixedImage1)
-    {
-    m = m_FixedImage1->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_FixedImage2)
-    {
-    m = m_FixedImage2->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  if (m_MovingImage)
-    {
-    m = m_MovingImage->GetMTime();
-    mtime = (m > mtime ? m : mtime);
-    }
-
-  return mtime;
-
-}
-
-
 template < typename TFixedImage, typename TMovingImage >
 void
 TwoProjectionImageRegistrationMethod<TFixedImage,TMovingImage>