removed C API in the following modules: photo, video, imgcodecs, videoio (#13060)

* removed C API in the following modules: photo, video, imgcodecs, videoio

* trying to fix various compile errors and warnings on Windows and Linux

* continue to fix compile errors and warnings

* continue to fix compile errors, warnings, as well as the test failures

* trying to resolve compile warnings on Android

* Update cap_dc1394_v2.cpp

fix warning from the new GCC

modules/photo/include/opencv2/photo.hpp

@@ -61,6 +61,12 @@ camera calibration with multiple exposures and exposure fusion.
 @}
   */
 
+enum InpaintingModes
+{
+    CV_INPAINT_NS      =0,
+    CV_INPAINT_TELEA   =1
+};
+
 namespace cv
 {
 

modules/photo/include/opencv2/photo/photo_c.h

@@ -1,74 +0,0 @@
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-//  By downloading, copying, installing or using the software you agree to this license.
-//  If you do not agree to this license, do not download, install,
-//  copy or use the software.
-//
-//
-//                           License Agreement
-//                For Open Source Computer Vision Library
-//
-// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
-// Copyright (C) 2008-2012, Willow Garage Inc., all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-//   * Redistribution's of source code must retain the above copyright notice,
-//     this list of conditions and the following disclaimer.
-//
-//   * Redistribution's in binary form must reproduce the above copyright notice,
-//     this list of conditions and the following disclaimer in the documentation
-//     and/or other materials provided with the distribution.
-//
-//   * The name of the copyright holders may not be used to endorse or promote products
-//     derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-#ifndef OPENCV_PHOTO_C_H
-#define OPENCV_PHOTO_C_H
-
-#include "opencv2/core/core_c.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** @addtogroup photo_c
-  @{
-  */
-
-/* Inpainting algorithms */
-enum InpaintingModes
-{
-    CV_INPAINT_NS      =0,
-    CV_INPAINT_TELEA   =1
-};
-
-
-/* Inpaints the selected region in the image */
-CVAPI(void) cvInpaint( const CvArr* src, const CvArr* inpaint_mask,
-                       CvArr* dst, double inpaintRange, int flags );
-
-/** @} */
-
-#ifdef __cplusplus
-} //extern "C"
-#endif
-
-#endif //OPENCV_PHOTO_C_H