diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index 109a668..b60109a 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -734,11 +734,6 @@
 void QuicSession::SendRstStream(QuicStreamId id,
                                 QuicRstStreamErrorCode error,
                                 QuicStreamOffset bytes_written) {
-  if (!GetQuicReloadableFlag(quic_delete_send_rst_stream_inner)) {
-    SendRstStreamInner(id, error, bytes_written, false);
-    return;
-  }
-  QUIC_RELOADABLE_FLAG_COUNT(quic_delete_send_rst_stream_inner);
   if (connection()->connected()) {
     QuicConnection::ScopedPacketFlusher flusher(connection());
     MaybeSendRstStreamFrame(id, error, bytes_written);
@@ -754,42 +749,6 @@
   CloseStreamInner(id, true);
 }
 
-void QuicSession::SendRstStreamInner(QuicStreamId id,
-                                     QuicRstStreamErrorCode error,
-                                     QuicStreamOffset bytes_written,
-                                     bool close_write_side_only) {
-  if (connection()->connected()) {
-    // Only send if still connected.
-    if (VersionHasIetfQuicFrames(transport_version())) {
-      // Send a RST_STREAM frame plus, if version 99, an IETF
-      // QUIC STOP_SENDING frame. Both sre sent to emulate
-      // the two-way close that Google QUIC's RST_STREAM does.
-      QuicConnection::ScopedPacketFlusher flusher(connection());
-      if (QuicUtils::GetStreamType(id, perspective(), IsIncomingStream(id)) !=
-          READ_UNIDIRECTIONAL) {
-        control_frame_manager_.WriteOrBufferRstStream(id, error, bytes_written);
-      }
-      if (!close_write_side_only &&
-          QuicUtils::GetStreamType(id, perspective(), IsIncomingStream(id)) !=
-              WRITE_UNIDIRECTIONAL) {
-        control_frame_manager_.WriteOrBufferStopSending(error, id);
-      }
-    } else {
-      DCHECK(!close_write_side_only);
-      control_frame_manager_.WriteOrBufferRstStream(id, error, bytes_written);
-    }
-    connection_->OnStreamReset(id, error);
-  }
-  if (error != QUIC_STREAM_NO_ERROR && QuicContainsKey(zombie_streams_, id)) {
-    OnStreamDoneWaitingForAcks(id);
-    return;
-  }
-
-  if (!close_write_side_only) {
-    CloseStreamInner(id, true);
-  }
-}
-
 void QuicSession::MaybeSendRstStreamFrame(QuicStreamId id,
                                           QuicRstStreamErrorCode error,
                                           QuicStreamOffset bytes_written) {
diff --git a/quic/core/quic_session.h b/quic/core/quic_session.h
index d951912..f17eabc 100644
--- a/quic/core/quic_session.h
+++ b/quic/core/quic_session.h
@@ -444,17 +444,6 @@
     return num_locally_closed_incoming_streams_highest_offset_;
   }
 
-  // Does actual work of sending reset-stream or reset-stream&stop-sending
-  // If the connection is not version 99/IETF QUIC, will always send a
-  // RESET_STREAM and close_write_side_only is ignored. If the connection is
-  // IETF QUIC/Version 99 then will send a RESET_STREAM and STOP_SENDING if
-  // close_write_side_only is false, just a RESET_STREAM if
-  // close_write_side_only is true.
-  virtual void SendRstStreamInner(QuicStreamId id,
-                                  QuicRstStreamErrorCode error,
-                                  QuicStreamOffset bytes_written,
-                                  bool close_write_side_only);
-
   // Record errors when a connection is closed at the server side, should only
   // be called from server's perspective.
   // Noop if |error| is QUIC_NO_ERROR.