Remove the deprecated cipher fallback.

net/socket/ssl_client_socket_pool.cc

 // Copyright (c) 2012 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/socket/ssl_client_socket_pool.h"
 
 #include <cstdlib>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 348 matching lines @@
   if (params_->expect_spdy() &&
       ssl_socket_->GetNegotiatedProtocol() != kProtoHTTP2) {
     return ERR_ALPN_NEGOTIATION_FAILED;
   }
 
   // Perform a TLS 1.3 version interference probe on various connection
   // errors. The retry will never produce a successful connection but may map
   // errors to ERR_SSL_VERSION_INTERFERENCE, which signals a probable
   // version-interfering middlebox.
   if (params_->ssl_config().version_max == SSL_PROTOCOL_VERSION_TLS1_3 &&
-      !params_->ssl_config().deprecated_cipher_suites_enabled &&
       !version_interference_probe_) {
     if (result == ERR_CONNECTION_CLOSED || result == ERR_SSL_PROTOCOL_ERROR ||
         result == ERR_SSL_VERSION_OR_CIPHER_MISMATCH ||
         result == ERR_CONNECTION_RESET ||
         result == ERR_SSL_BAD_RECORD_MAC_ALERT) {
       // Report the error code for each time a version interference probe is
       // triggered.
       UMA_HISTOGRAM_SPARSE_SLOWLY("Net.SSLVersionInterferenceProbeTrigger",
                                   std::abs(result));
       net_log().AddEventWithNetErrorCode(
@@ skipping 379 matching lines @@
   if (base_.CloseOneIdleSocket())
     return true;
   return base_.CloseOneIdleConnectionInHigherLayeredPool();
 }
 
 void SSLClientSocketPool::OnSSLConfigChanged() {
   FlushWithError(ERR_NETWORK_CHANGED);
 }
 
 }  // namespace net