Remove stale function declaration.

Patch by Martin Storsjö <$firstname $firstname st>.



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@21899 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/rtsp.h

@@ -315,7 +315,6 @@ typedef struct RTSPStream {
     //@}
 } RTSPStream;
 
-int rtsp_init(void);
 void rtsp_parse_line(RTSPMessageHeader *reply, const char *buf);
 
 #if LIBAVFORMAT_VERSION_INT < (53 << 16)