Remove redundant frame_parameter_update setting in rt sp7

This speed feature has been enabled in rt speed 5 and after.

Change-Id: I0bc96daa932e7aef5caa6d363e6747ca67462f3b
diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index c58eca9..a15091c 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -868,8 +868,6 @@
   }
 
   if (speed >= 7) {
-    sf->hl_sf.frame_parameter_update = 0;
-
     sf->part_sf.default_max_partition_size = BLOCK_128X128;
     sf->part_sf.default_min_partition_size = BLOCK_8X8;
     sf->part_sf.partition_search_type = VAR_BASED_PARTITION;