Update from https://crrev.com/311076

net/quic/reliable_quic_stream.h

Index: net/quic/reliable_quic_stream.h
diff --git a/net/quic/reliable_quic_stream.h b/net/quic/reliable_quic_stream.h
index 1de600414eae997dc5fbd9aadcb97d07ce117c7f..93ad0c695fc4fe01bf918c2a34581cbabed27b38 100644
--- a/net/quic/reliable_quic_stream.h
+++ b/net/quic/reliable_quic_stream.h
@@ -167,11 +167,6 @@ class NET_EXPORT_PRIVATE ReliableQuicStream {
   const QuicStreamSequencer* sequencer() const { return &sequencer_; }
   QuicStreamSequencer* sequencer() { return &sequencer_; }
 
-  // TODO(rjshade): Remove this method when removing QUIC_VERSION_19.
-  void DisableFlowControl() {
-    flow_controller_.Disable();
-  }
-
   void DisableConnectionFlowControlForThisStream() {
     stream_contributes_to_connection_flow_control_ = false;
   }