[FFmpeg-cvslog] fftools/ffmpeg: remove a stale extern declaration

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Mon Aug 22 16:39:04 2022 +0200| [7c8737548f5426a4b55fdb8771775e9562c8828c] | committer: Anton Khirnov

fftools/ffmpeg: remove a stale extern declaration

Forgotten in 8cbf229c941b3c77a756bff05d0ceb5f4f2219c5

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7c8737548f5426a4b55fdb8771775e9562c8828c
---

 fftools/ffmpeg.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 27ef92654c..c461e93ff9 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -656,7 +656,6 @@ extern float audio_drift_threshold;
 extern float dts_delta_threshold;
 extern float dts_error_threshold;
 
-extern int audio_volume;
 extern int audio_sync_method;
 extern enum VideoSyncMethod video_sync_method;
 extern float frame_drop_threshold;