avformat/asfdec: remove duplicated packet_segments reset

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/asfdec.c

@@ -1349,7 +1349,6 @@ static void asf_reset_header(AVFormatContext *s)
     int i;
 
     asf->packet_size_left      = 0;
-    asf->packet_segments       = 0;
     asf->packet_flags          = 0;
     asf->packet_property       = 0;
     asf->packet_timestamp      = 0;