avcodec/snow: Don't override fpel hdsp function

The functions do the same, yet the dedicated functions
from hpeldsp are more optimized.
(Notice that the motion estimation code only uses
aligned scratchpad buffers as destination when using
hdsp functions, so Snow-specific functions with relaxed
alignment like for the me-cmp API are not necessary.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/snow.c

@@ -470,11 +470,9 @@ static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, p
     mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
 }
 
-mca( 0, 0,16)
 mca( 8, 0,16)
 mca( 0, 8,16)
 mca( 8, 8,16)
-mca( 0, 0,8)
 mca( 8, 0,8)
 mca( 0, 8,8)
 mca( 8, 8,8)
@@ -509,7 +507,6 @@ av_cold int ff_snow_common_init(AVCodecContext *avctx){
     s->hdsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
         mc_block_hpel ## dx ## dy ## 8;
 
-    mcfh(0, 0)
     mcfh(8, 0)
     mcfh(0, 8)
     mcfh(8, 8)