Remove 1 partition_search_breakout_rate_thr setting

This partition_search_breakout_rate_thr setting would be overwritten
by framesize_dependent setting.

Change-Id: I82b72bcb0d01ccc6251f2e03c9b85f4002448d2c
diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index b61666b..6860a86 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -290,7 +290,6 @@
     sf->disable_filter_search_var_thresh = 100;
     sf->comp_inter_joint_search_thresh = BLOCK_SIZES_ALL;
 
-    sf->partition_search_breakout_rate_thr = 80;
     sf->allow_partition_search_skip = 1;
     sf->disable_wedge_search_var_thresh = 100;
     sf->disable_wedge_search_edge_thresh = 0;