useless null

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@12441 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/img2.c

@@ -430,6 +430,5 @@ AVOutputFormat image2pipe_muxer = {
     CODEC_ID_MJPEG,
     img_write_header,
     img_write_packet,
-    NULL,
 };
 #endif