relnote: Deprecate --reloadable_flag_quic_use_hash_in_scup

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"
 
 // If true, it will return as soon as an error is detected while validating
 // CHLO.
 bool FLAGS_use_early_return_when_verifying_chlo = true;
 
@@ skipping 63 matching lines @@
 bool FLAGS_quic_enable_autotune_by_default = true;
 
 // Use largest acked in the most recent ack instead of largest acked ever in
 // loss recovery.
 bool FLAGS_quic_loss_recovery_use_largest_acked = true;
 
 // Only set one alarm for sending at once, either the send alarm or
 // retransmission alarm.  Disabled because it breaks QUIC time loss detection.
 bool FLAGS_quic_only_one_sending_alarm = false;
 
-// If true, the hash of the CHLO message will be used in the proof generated for
-// an SCUP message.
-bool FLAGS_quic_use_hash_in_scup = true;
-
 // If true, QUIC public reset packets will have the \"pre-v33\" public header
 // flags.
 bool FLAGS_quic_use_old_public_reset_packets = true;
 
 // If true, checks if the CHLO is acceptable as a matter of policy.
 bool FLAGS_quic_enable_chlo_policy = true;
 
 // If true, ignore QUIC data frames of length 0 for flow control.
 bool FLAGS_quic_ignore_zero_length_frames = true;
 
@@ skipping 54 matching lines @@
 // If true, a connection does not migrate on an old packet even the peer address
 // changes.
 bool FLAGS_quic_do_not_migrate_on_old_packet = true;
 
 // If true, use async codepaths to invoke ProofSource::GetProof.
 bool FLAGS_enable_async_get_proof = false;
 
 // If true, neuter null encrypted packets before sending the next handshake
 // message.
 bool FLAGS_quic_neuter_unencrypted_when_sending = false;