lavu: Drop deprecated option type

Deprecated in 02/2014.

libavutil/opt.h

@@ -263,9 +263,6 @@ typedef struct AVOption {
     int flags;
 #define AV_OPT_FLAG_ENCODING_PARAM  1   ///< a generic parameter which can be set by the user for muxing or encoding
 #define AV_OPT_FLAG_DECODING_PARAM  2   ///< a generic parameter which can be set by the user for demuxing or decoding
-#if FF_API_OPT_TYPE_METADATA
-#define AV_OPT_FLAG_METADATA        4   ///< some data extracted or inserted into the file like title, comment, ...
-#endif
 #define AV_OPT_FLAG_AUDIO_PARAM     8
 #define AV_OPT_FLAG_VIDEO_PARAM     16
 #define AV_OPT_FLAG_SUBTITLE_PARAM  32

libavutil/version.h

@@ -78,9 +78,6 @@
  * @{
  */
 
-#ifndef FF_API_OPT_TYPE_METADATA
-#define FF_API_OPT_TYPE_METADATA        (LIBAVUTIL_VERSION_MAJOR < 56)
-#endif
 #ifndef FF_API_DLOG
 #define FF_API_DLOG                     (LIBAVUTIL_VERSION_MAJOR < 56)
 #endif