vc1dec: remove unused variables

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

libavcodec/vc1dec.c

@@ -345,7 +345,6 @@ static void vc1_smooth_overlap_filter_iblk(VC1Context *v)
 static void vc1_mc_1mv(VC1Context *v, int dir)
 {
     MpegEncContext *s = &v->s;
-    DSPContext *dsp   = &v->s.dsp;
     H264ChromaContext *h264chroma = &v->h264chroma;
     uint8_t *srcY, *srcU, *srcV;
     int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
@@ -1852,7 +1851,6 @@ static inline void vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y,
 static void vc1_interp_mc(VC1Context *v)
 {
     MpegEncContext *s = &v->s;
-    DSPContext *dsp = &v->s.dsp;
     H264ChromaContext *h264chroma = &v->h264chroma;
     uint8_t *srcY, *srcU, *srcV;
     int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;