some includes moved to precomp.hpp for gpu module

modules/gpu/src/imgproc_gpu.cpp

@@ -41,7 +41,6 @@
 //M*/
 
 #include "precomp.hpp"
-#include <utility>
 
 using namespace cv;
 using namespace cv::gpu;

modules/gpu/src/precomp.hpp

@@ -58,6 +58,7 @@
 #include <exception>
 #include <iterator>
 #include <functional>
+#include <utility>
 
 #include "opencv2/gpu/gpu.hpp"
 #include "opencv2/imgproc/imgproc.hpp"

modules/gpu/src/split_merge.cpp

@@ -41,7 +41,6 @@
 //M*/
 
 #include "precomp.hpp"
-#include <vector>
 
 using namespace std;