Deprecate --gfe2_reloadable_flag_quic_packet_creator_prefetch.

net/quic/quic_flags.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_flags.h"
 
 // When true, the use time based loss detection instead of nack.
 bool FLAGS_quic_use_time_loss_detection = false;
 
 // If true, it will return as soon as an error is detected while validating
@@ skipping 54 matching lines @@
 // Net.QuicSession.HeadersHOLBlockedTime.
 bool FLAGS_quic_measure_headers_hol_blocking_time = true;
 
 // Disable QUIC's userspace pacing.
 bool FLAGS_quic_disable_pacing = false;
 
 // If true, Use QUIC's GeneralLossAlgorithm implementation instead of
 // TcpLossAlgorithm or TimeLossAlgorithm.
 bool FLAGS_quic_general_loss_algorithm = true;
 
-// If true, use the unrolled prefetch path in QuicPacketCreator::CopyToBuffer.
-bool FLAGS_quic_packet_creator_prefetch = false;
-
 // If true, only migrate QUIC connections when client address changes are
 // considered to be caused by NATs.
 bool FLAGS_quic_disable_non_nat_address_migration = true;
 
 // If true, QUIC connections will timeout when packets are not being recieved,
 // even if they are being sent.
 bool FLAGS_quic_use_new_idle_timeout = true;
 
 // If true, replace QuicFrameList with StreamSequencerBuffer as underlying data
 // structure for QuicStreamSequencer bufferring.
@@ skipping 35 matching lines @@
 // check while creating a new stream.
 bool FLAGS_quic_distinguish_incoming_outgoing_streams = true;
 
 // If true, QUIC servers will attempt to validate a client's source
 // address token using the primary config, even if no server config id
 // is present in the client hello.
 bool FLAGS_quic_validate_stk_without_scid = true;
 
 // If true, use the new write blocked list for QUIC.
 bool FLAGS_quic_new_blocked_list = true;