BUG: Remove redundant/invalid imports to OpenCV

cv.h is no longer part of OpenCV. In addition, opencv2/opencv.hpp
was included twice.

Author: mseng10

src/Video/BridgeOpenCV/ConvertAnITKGrayScaleImageToCVMat/Code.cxx

@@ -21,16 +21,9 @@
 #include "itkOpenCVImageBridge.h"
 
 // includes from OpenCV
-#include "cv.h"
-#if CV_VERSION_MAJOR > 2
-#  include "opencv2/opencv.hpp" // cv::imwrite
-#endif
+#include "opencv2/opencv.hpp" // cv::imwrite
 
 
-#if CV_VERSION_MAJOR > 2
-#  include "opencv2/opencv.hpp" // cv::imwrite
-#endif
-
 int
 main(int argc, char * argv[])
 {