10l: remove alien seek function from demuxer

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@6617 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/wv.c

@@ -205,5 +205,4 @@ AVInputFormat wv_demuxer = {
     wv_read_header,
     wv_read_packet,
     wv_read_close,
-    pcm_read_seek,
 };