Remove more unused motion vector cost arrays

Change-Id: I68f8cc50d81a0cac116c6f342202b85ad2e6e3b2
diff --git a/av1/encoder/block.h b/av1/encoder/block.h
index ac28fe2..12dbef9 100644
--- a/av1/encoder/block.h
+++ b/av1/encoder/block.h
@@ -142,10 +142,8 @@
   int *nmvcost[NMV_CONTEXTS][2];
   int *nmvcost_hp[NMV_CONTEXTS][2];
   int **mv_cost_stack[NMV_CONTEXTS];
-
   int **mvcost;
-  int *nmvsadcost[2];
-  int *nmvsadcost_hp[2];
+
 #if CONFIG_MOTION_VAR
   int32_t *wsrc_buf;
   int32_t *mask_buf;