avformat/moflex: Simplify freeing packets

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

libavformat/moflex.c

@@ -369,10 +369,7 @@ static int moflex_read_seek(AVFormatContext *s, int stream_index,
 static int moflex_read_close(AVFormatContext *s)
 {
     for (int i = 0; i < s->nb_streams; i++) {
-        AVPacket *packet = s->streams[i]->priv_data;
+        av_packet_free((AVPacket **)&s->streams[i]->priv_data);
-
-        av_packet_free(&packet);
-        s->streams[i]->priv_data = 0;
     }
 
     return 0;