lavf: remove disabled FF_API_NEW_STREAM cruft

libavformat/avformat.h

@@ -1379,21 +1379,6 @@ void avformat_close_input(AVFormatContext **s);
  * @}
  */
 
-#if FF_API_NEW_STREAM
-/**
- * Add a new stream to a media file.
- *
- * Can only be called in the read_header() function. If the flag
- * AVFMTCTX_NOHEADER is in the format context, then new streams
- * can be added in read_packet too.
- *
- * @param s media file handle
- * @param id file-format-dependent stream ID
- */
-attribute_deprecated
-AVStream *av_new_stream(AVFormatContext *s, int id);
-#endif
-
 #if FF_API_SET_PTS_INFO
 /**
  * @deprecated this function is not supposed to be called outside of lavf

libavformat/utils.c

@@ -2630,16 +2630,6 @@ void avformat_close_input(AVFormatContext **ps)
         avio_close(pb);
 }
 
-#if FF_API_NEW_STREAM
-AVStream *av_new_stream(AVFormatContext *s, int id)
-{
-    AVStream *st = avformat_new_stream(s, NULL);
-    if (st)
-        st->id = id;
-    return st;
-}
-#endif
-
 AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c)
 {
     AVStream *st;

libavformat/version.h

@@ -47,9 +47,6 @@
  * Those FF_API_* defines are not part of public API.
  * They may change, break or disappear at any time.
  */
-#ifndef FF_API_NEW_STREAM
-#define FF_API_NEW_STREAM              (LIBAVFORMAT_VERSION_MAJOR < 54)
-#endif
 #ifndef FF_API_PRELOAD
 #define FF_API_PRELOAD                 (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif