Remove av1_use_hp_mv()

It always returns true since the related misc_fix[1] was merged.

[1] 23e83574b6a5105bdc686c49f2d5909f33ea721f

Change-Id: Ie3af685572a2f0a42d2b9fb9903c1abeea225dfd
diff --git a/av1/encoder/encodemv.c b/av1/encoder/encodemv.c
index f970c8f..9b6e0d9 100644
--- a/av1/encoder/encodemv.c
+++ b/av1/encoder/encodemv.c
@@ -261,7 +261,6 @@
                    const nmv_context *mvctx, int usehp) {
   const MV diff = { mv->row - ref->row, mv->col - ref->col };
   const MV_JOINT_TYPE j = av1_get_mv_joint(&diff);
-  usehp = usehp && av1_use_mv_hp(ref);
 #if CONFIG_REF_MV
   (void)is_compound;
 #endif
@@ -318,7 +317,7 @@
       nmv_context_counts *counts = &nmv_counts[nmv_ctx];
       (void)pred_mvs;
 #endif
-      av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+      av1_inc_mv(&diff, counts, 1);
     }
   } else if (mode == NEAREST_NEWMV || mode == NEAR_NEWMV) {
     const MV *ref = &mbmi_ext->ref_mvs[mbmi->ref_frame[1]][0].as_mv;
@@ -331,7 +330,7 @@
                     mbmi_ext->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx);
     nmv_context_counts *counts = &nmv_counts[nmv_ctx];
 #endif
-    av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+    av1_inc_mv(&diff, counts, 1);
   } else if (mode == NEW_NEARESTMV || mode == NEW_NEARMV) {
     const MV *ref = &mbmi_ext->ref_mvs[mbmi->ref_frame[0]][0].as_mv;
     const MV diff = { mvs[0].as_mv.row - ref->row,
@@ -343,7 +342,7 @@
                     mbmi_ext->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx);
     nmv_context_counts *counts = &nmv_counts[nmv_ctx];
 #endif
-    av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+    av1_inc_mv(&diff, counts, 1);
   }
 }
 
@@ -372,7 +371,7 @@
                       mbmi_ext->ref_mv_stack[rf_type], i, mbmi->ref_mv_idx);
       nmv_context_counts *counts = &nmv_counts[nmv_ctx];
 #endif
-      av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+      av1_inc_mv(&diff, counts, 1);
     }
   } else if (mode == NEAREST_NEWMV || mode == NEAR_NEWMV) {
     const MV *ref = &mi->bmi[block].ref_mv[1].as_mv;
@@ -385,7 +384,7 @@
                     mbmi_ext->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx);
     nmv_context_counts *counts = &nmv_counts[nmv_ctx];
 #endif
-    av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+    av1_inc_mv(&diff, counts, 1);
   } else if (mode == NEW_NEARESTMV || mode == NEW_NEARMV) {
     const MV *ref = &mi->bmi[block].ref_mv[0].as_mv;
     const MV diff = { mvs[0].as_mv.row - ref->row,
@@ -397,7 +396,7 @@
                     mbmi_ext->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx);
     nmv_context_counts *counts = &nmv_counts[nmv_ctx];
 #endif
-    av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+    av1_inc_mv(&diff, counts, 1);
   }
 }
 #else
@@ -425,7 +424,7 @@
 #endif
     const MV diff = { mvs[i].as_mv.row - ref->row,
                       mvs[i].as_mv.col - ref->col };
-    av1_inc_mv(&diff, counts, av1_use_mv_hp(ref));
+    av1_inc_mv(&diff, counts, 1);
   }
 }
 #endif  // CONFIG_EXT_INTER