removed unused includes

modules/gpu/test/test_precomp.hpp

@@ -51,29 +51,11 @@
 #ifndef __OPENCV_TEST_PRECOMP_HPP__
 #define __OPENCV_TEST_PRECOMP_HPP__
 
-#include <cmath>
-#include <ctime>
-#include <cstdio>
-#include <iostream>
-#include <fstream>
-#include <functional>
-#include <sstream>
-#include <string>
-#include <limits>
-#include <algorithm>
-#include <iterator>
-#include <stdexcept>
+#include "opencv2/ts.hpp"
+#include "opencv2/ts/gpu_test.hpp"
 
 #include "opencv2/core.hpp"
 #include "opencv2/core/opengl.hpp"
-#include "opencv2/highgui.hpp"
-#include "opencv2/calib3d.hpp"
-#include "opencv2/imgproc.hpp"
-#include "opencv2/video.hpp"
-#include "opencv2/ts.hpp"
-#include "opencv2/ts/gpu_test.hpp"
 #include "opencv2/gpu.hpp"
 
-#include "opencv2/core/gpu_private.hpp"
-
 #endif