lavf: remove disabled FF_API_CLOSE_INPUT_FILE cruft

libavformat/avformat.h

@@ -1386,17 +1386,6 @@ int av_read_play(AVFormatContext *s);
  */
 int av_read_pause(AVFormatContext *s);
 
-#if FF_API_CLOSE_INPUT_FILE
-/**
- * @deprecated use avformat_close_input()
- * Close a media file (but not its codecs).
- *
- * @param s media file handle
- */
-attribute_deprecated
-void av_close_input_file(AVFormatContext *s);
-#endif
-
 /**
  * Close an opened input AVFormatContext. Free it and all its contents
  * and set *s to NULL.

libavformat/utils.c

@@ -2705,13 +2705,6 @@ void avformat_free_context(AVFormatContext *s)
     av_free(s);
 }
 
-#if FF_API_CLOSE_INPUT_FILE
-void av_close_input_file(AVFormatContext *s)
-{
-    avformat_close_input(&s);
-}
-#endif
-
 void avformat_close_input(AVFormatContext **ps)
 {
     AVFormatContext *s = *ps;

libavformat/version.h

@@ -49,9 +49,6 @@
  * the public API and may change, break or disappear at any time.
  */
 
-#ifndef FF_API_CLOSE_INPUT_FILE
-#define FF_API_CLOSE_INPUT_FILE        (LIBAVFORMAT_VERSION_MAJOR < 55)
-#endif
 #ifndef FF_API_APPLEHTTP_PROTO
 #define FF_API_APPLEHTTP_PROTO         (LIBAVFORMAT_VERSION_MAJOR < 55)
 #endif