diff --git a/quic/core/quic_session.h b/quic/core/quic_session.h
index 1475532..5250f9b 100644
--- a/quic/core/quic_session.h
+++ b/quic/core/quic_session.h
@@ -548,10 +548,6 @@
   void set_largest_peer_created_stream_id(
       QuicStreamId largest_peer_created_stream_id);
 
-  void set_error(QuicErrorCode error) {
-    on_closed_frame_.extracted_error_code = error;
-  }
-
   QuicWriteBlockedList* write_blocked_streams() {
     return &write_blocked_streams_;
   }