update gitignore

3rdpart/OpenCV/include/opencv2/photo/legacy/constants_c.h

@@ -1,14 +0,0 @@
-// This file is part of OpenCV project.
-// It is subject to the license terms in the LICENSE file found in the top-level directory
-// of this distribution and at http://opencv.org/license.html.
-
-#ifndef OPENCV_PHOTO_LEGACY_CONSTANTS_H
-#define OPENCV_PHOTO_LEGACY_CONSTANTS_H
-
-enum InpaintingModes
-{
-    CV_INPAINT_NS      =0,
-    CV_INPAINT_TELEA   =1
-};
-
-#endif // OPENCV_PHOTO_LEGACY_CONSTANTS_H