Revert previous bogus warning fix.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@655 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/h263.c

@@ -1367,6 +1367,7 @@ static inline int mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr,
 {
     int a, b, c, wrap, pred, scale;
     UINT16 *dc_val;
+    int dummy;
 
     /* find prediction */
     if (n < 4) {