cosmetics: remove debugging cruft

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 8e9027d266)

libavcodec/vmdav.c

@@ -481,9 +481,6 @@ static int vmdaudio_loadsound(VmdAudioContext *s, unsigned char *data,
 {
     int i;
 
-//    if (silence)
-//        av_log(s->avctx, AV_LOG_INFO, "silent block!\n");
-
     if (silence) {
         memset(data, 0, data_size * 2);
     } else {