Fix bug with header files of sample codes

Author: nynyg

modules/photometric_calib/samples/response_calibration.cpp

@@ -1,13 +1,6 @@
-#include <string>
-#include <iostream>
-#include <iomanip>
-#include <vector>
-
-#include "opencv2/opencv.hpp"
 #include "opencv2/core.hpp"
 #include "opencv2/highgui.hpp"
 #include "opencv2/photometric_calib.hpp"
-#include "opencv2/imgproc/imgproc.hpp"
 
 using namespace std;
 using namespace cv;

modules/photometric_calib/samples/vignette_calibration.cpp

@@ -1,13 +1,6 @@
-#include <string>
-#include <iostream>
-#include <iomanip>
-#include <vector>
-
-#include "opencv2/opencv.hpp"
 #include "opencv2/core.hpp"
 #include "opencv2/highgui.hpp"
 #include "opencv2/photometric_calib.hpp"
-#include "opencv2/imgproc/imgproc.hpp"
 
 using namespace std;
 using namespace cv;