Fix compilation error

BUG=aomedia:2605

Change-Id: I37677d7697c8102d5b89c971f717c1b75b5161fa

av1/encoder/rdopt.c

diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 6a1c8e4..41de894 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -4281,8 +4281,7 @@
     valid_refs[frame - 1] = x->search_ref_frame[frame];
     if (!valid_refs[frame - 1]) {
       valid_refs[frame - 1] = (!prune_ref_by_selective_ref_frame(
-          cpi, x, refs, cm->cur_frame->ref_display_order_hint,
-          cm->current_frame.display_order_hint));
+          cpi, x, refs, cm->cur_frame->ref_display_order_hint));
     }
   }