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Remove unused need_to_clamp_mvs

This flag no longer needed.

Change-Id: If13482015ddb92d225792ea5c0ee455d2285d1f6

--- a/vp9/common/vp9_blockd.h

+++ b/vp9/common/vp9_blockd.h

@@ -217,8 +217,6 @@

   int mb_mode_context[MAX_REF_FRAMES];

   unsigned char mb_skip_coeff;                                /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */

-  unsigned char need_to_clamp_mvs;

-  unsigned char need_to_clamp_secondmv;

   unsigned char segment_id;           // Segment id for current frame

   // Flags used for prediction status of various bistream signals

--- a/vp9/decoder/vp9_decodemv.c

+++ b/vp9/decoder/vp9_decodemv.c

@@ -501,8 +501,6 @@

   int mb_to_left_edge, mb_to_right_edge, mb_to_top_edge, mb_to_bottom_edge;

   int j, idx, idy;

-  mbmi->need_to_clamp_mvs = 0;

-  mbmi->need_to_clamp_secondmv = 0;

   mbmi->ref_frame[1] = NONE;

   // Make sure the MACROBLOCKD mode info pointer is pointed at the

@@ -624,7 +622,6 @@

     mbmi->uv_mode = DC_PRED;

     if (mbmi->sb_type < BLOCK_SIZE_SB8X8) {

-      mbmi->need_to_clamp_mvs = 0;

       for (idy = 0; idy < 2; idy += bh) {

         for (idx = 0; idx < 2; idx += bw) {

           int_mv blockmv, secondmv;

@@ -735,21 +732,9 @@

         case NEWMV:

           decode_mv(r, &mv0->as_mv, &best_mv.as_mv, nmvc, &cm->fc.NMVcount,

                     xd->allow_high_precision_mv);

-          mbmi->need_to_clamp_mvs = check_mv_bounds(mv0,

-                                                    mb_to_left_edge,

-                                                    mb_to_right_edge,

-                                                    mb_to_top_edge,

-                                                    mb_to_bottom_edge);

-

-          if (mbmi->ref_frame[1] > 0) {

+          if (mbmi->ref_frame[1] > 0)

             decode_mv(r, &mv1->as_mv, &best_mv_second.as_mv, nmvc,

                       &cm->fc.NMVcount, xd->allow_high_precision_mv);

-            mbmi->need_to_clamp_secondmv = check_mv_bounds(mv1,

-                                                             mb_to_left_edge,

-                                                             mb_to_right_edge,

-                                                             mb_to_top_edge,

-                                                             mb_to_bottom_edge);

-          }

           break;

         default:

 #if CONFIG_DEBUG

-- 

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