vp3: fix regression with mplayer-crash.ogv

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/vp3.c

@@ -1570,10 +1570,7 @@ static void render_slice(Vp3DecodeContext *s, int slice)
                     /* invert DCT and place (or add) in final output */
 
                     if (s->all_fragments[i].coding_method == MODE_INTRA) {
-                        int index;
-                        index = vp3_dequant(s, s->all_fragments + i, plane, 0, block);
-                        if (index > 63)
-                            continue;
+                        vp3_dequant(s, s->all_fragments + i, plane, 0, block);
                         if(s->avctx->idct_algo!=FF_IDCT_VP3)
                             block[0] += 128<<3;
                         s->dsp.idct_put(
@@ -1581,10 +1578,7 @@ static void render_slice(Vp3DecodeContext *s, int slice)
                             stride,
                             block);
                     } else {
-                        int index = vp3_dequant(s, s->all_fragments + i, plane, 1, block);
-                        if (index > 63)
-                            continue;
-                        if (index > 0) {
+                        if (vp3_dequant(s, s->all_fragments + i, plane, 1, block)) {
                         s->dsp.idct_add(
                             output_plane + first_pixel,
                             stride,