Remove an unused array

Change-Id: I1b74c2efcef553f7d9a5a4a701ff29fa905a61f5
diff --git a/av1/common/common_data.h b/av1/common/common_data.h
index a0d78ce..2880bb7 100644
--- a/av1/common/common_data.h
+++ b/av1/common/common_data.h
@@ -901,7 +901,6 @@
 static const int quant_dist_weight[4][2] = {
   { 2, 3 }, { 2, 5 }, { 2, 7 }, { 1, MAX_FRAME_DISTANCE }
 };
-static const double quant_dist_category[4] = { 1.5, 2.5, 3.5, 255 };
 static const int quant_dist_lookup_table[2][4][2] = {
   { { 9, 7 }, { 11, 5 }, { 12, 4 }, { 13, 3 } },
   { { 7, 9 }, { 5, 11 }, { 4, 12 }, { 3, 13 } },