message: imgcodecs(doc): Sync imread_ docuemtation with the implemetation.
  Documentation was desynchronized in commit
diff: @@ -377,10 +377,6 @@ static void ApplyExifOrientation(ExifEntry_t orientationTag, Mat& img)
  *
  * @param[in] filename File to load
  * @param[in] flags Flags
  - * @param[in] hdrtype { LOAD_CVMAT=0,
  - * LOAD_IMAGE=1,
  - * LOAD_MAT=2
  - * }
  * @param[in] mat Reference to C++ Mat object (If LOAD_MAT)
  *
  */
  