avcodec/asvenc: Replace bitstream space check by assert

This should never be untrue, if it is, thats a bug
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/asvenc.c

@@ -173,10 +173,7 @@ static inline int encode_mb(ASV1Context *a, int16_t block[6][64])
 {
     int i;
 
-    if (a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb) >> 3) < MAX_MB_SIZE) {
-        av_log(a->avctx, AV_LOG_ERROR, "encoded frame too large\n");
-        return -1;
-    }
+    av_assert0(a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb) >> 3) >= MAX_MB_SIZE);
 
     if (a->avctx->codec_id == AV_CODEC_ID_ASV1) {
         for (i = 0; i < 6; i++)