Remove multipath_enabled from quic_config and quic_connection. No functional change expected.

net/quic/core/quic_framer_test.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/quic/core/quic_framer.h"
 
 #include <algorithm>
 #include <cstdint>
 #include <map>
 #include <memory>
@@ skipping 3524 matching lines @@
 TEST_P(QuicFramerTest, ConstructEncryptedPacket) {
   // Since we are using ConstructEncryptedPacket, we have to set the framer's
   // crypto to be Null.
   framer_.SetDecrypter(ENCRYPTION_NONE,
                        new NullDecrypter(framer_.perspective()));
   framer_.SetEncrypter(ENCRYPTION_NONE,
                        new NullEncrypter(framer_.perspective()));
   QuicVersionVector versions;
   versions.push_back(framer_.version());
   std::unique_ptr<QuicEncryptedPacket> packet(ConstructEncryptedPacket(
-      42, false, false, false, kTestQuicStreamId, kTestString,
+      42, false, false, kTestQuicStreamId, kTestString,
       PACKET_8BYTE_CONNECTION_ID, PACKET_6BYTE_PACKET_NUMBER, &versions));
 
   MockFramerVisitor visitor;
   framer_.set_visitor(&visitor);
   EXPECT_CALL(visitor, OnPacket()).Times(1);
   EXPECT_CALL(visitor, OnUnauthenticatedPublicHeader(_))
       .Times(1)
       .WillOnce(Return(true));
   EXPECT_CALL(visitor, OnUnauthenticatedHeader(_))
       .Times(1)
@@ skipping 102 matching lines @@
     'o',  ' ',  'w',  'o',
     'r',  'l',  'd',  '!',
   };
   // clang-format on
 
   QuicFramerFuzzFunc(packet, arraysize(packet));
 }
 
 }  // namespace test
 }  // namespace net