Removing unused mv_bias and check_mv_bounds functions.

Change-Id: I1558fd969d9ad112bf6480bdd16ef87edd396ab5

vp9/common/vp9_findnearmv.h

@@ -28,18 +28,6 @@ void vp9_find_best_ref_mvs(MACROBLOCKD *xd,
                            int_mv *nearest,
                            int_mv *near);
 
-static void mv_bias(int refmb_ref_frame_sign_bias, int refframe,
-                    int_mv *mvp, const int *ref_frame_sign_bias) {
-  MV xmv = mvp->as_mv;
-
-  if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe]) {
-    xmv.row *= -1;
-    xmv.col *= -1;
-  }
-
-  mvp->as_mv = xmv;
-}
-
 // TODO(jingning): this mv clamping function should be block size dependent.
 static void clamp_mv(int_mv *mv,
                      int mb_to_left_edge,
@@ -61,15 +49,6 @@ static int clamp_mv2(int_mv *mv, const MACROBLOCKD *xd) {
   return tmp_mv.as_int != mv->as_int;
 }
 
-static int check_mv_bounds(int_mv *mv,
-                           int mb_to_left_edge, int mb_to_right_edge,
-                           int mb_to_top_edge, int mb_to_bottom_edge) {
-  return mv->as_mv.col < mb_to_left_edge ||
-         mv->as_mv.col > mb_to_right_edge ||
-         mv->as_mv.row < mb_to_top_edge ||
-         mv->as_mv.row > mb_to_bottom_edge;
-}
-
 void vp9_append_sub8x8_mvs_for_idx(VP9_COMMON *pc,
                                    MACROBLOCKD *xd,
                                    int_mv *dst_nearest,