Remove ext_refresh_flags guard in update_ref_map

Change-Id: Ia3945b6a5451ba661743ef1f59ad06498c8a9a7f
diff --git a/av1/encoder/encode_strategy.c b/av1/encoder/encode_strategy.c
index 1912b61..7d56023 100644
--- a/av1/encoder/encode_strategy.c
+++ b/av1/encoder/encode_strategy.c
@@ -875,7 +875,7 @@
     default: assert(0 && "unknown type");
   }
 
-  if (!cpi->ext_refresh_frame_flags_pending) return;
+  return;
 
   // If check_frame_refs_short_signaling() decided to set
   // frame_refs_short_signaling=1 then we update remapped_ref_idx[] here.  Every