[fix] videoreader: fix copyable-polymorphic

https://github.com/KDE/clazy/blob/master/docs/checks/README-copyable-polymorphic.md

Author: bgallois

src/videoreader.cpp

@@ -37,17 +37,6 @@ This file is part of Fast Track.
 VideoReader::VideoReader(const string &path) : m_path{path} {
 }
 
-/**
- * @brief Copy constructor.
- * @param[in] video.
- */
-VideoReader::VideoReader(const VideoReader &video) : VideoCapture(video) {
-}
-
-VideoReader &VideoReader::operator=(const VideoReader &video) {
-  return *this;
-}
-
 /**
  * @brief Open the VideoReader.
  * @param[in] path to file.

src/videoreader.h

@@ -41,8 +41,8 @@ class VideoReader : public VideoCapture {
  public:
   VideoReader() = default;
   VideoReader(const string &path);
-  VideoReader(const VideoReader &);
-  VideoReader &operator=(const VideoReader &);
+  VideoReader(const VideoReader &) = delete;
+  VideoReader &operator=(const VideoReader &) = delete;
   bool getNext(UMat &destination);
   bool getNext(Mat &destination);
   bool getImage(int index, UMat &destination);