Revert of Add enable_ipc_logging build argument

ipc/ipc_sync_channel.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 "ipc/ipc_sync_channel.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 534 matching lines @@
 scoped_refptr<SyncMessageFilter> SyncChannel::CreateSyncMessageFilter() {
   scoped_refptr<SyncMessageFilter> filter = new SyncMessageFilter(
       sync_context()->shutdown_event());
   AddFilter(filter.get());
   if (!did_init())
     pre_init_sync_message_filters_.push_back(filter);
   return filter;
 }
 
 bool SyncChannel::Send(Message* message) {
-#if BUILDFLAG(IPC_MESSAGE_LOG_ENABLED)
+#ifdef IPC_MESSAGE_LOG_ENABLED
   std::string name;
   Logging::GetInstance()->GetMessageText(
       message->type(), &name, message, nullptr);
   TRACE_EVENT1("ipc", "SyncChannel::Send", "name", name);
 #else
   TRACE_EVENT2("ipc", "SyncChannel::Send",
                "class", IPC_MESSAGE_ID_CLASS(message->type()),
                "line", IPC_MESSAGE_ID_LINE(message->type()));
 #endif
   if (!message->is_sync()) {
@@ skipping 129 matching lines @@
       sync_context()->GetDispatchEvent()->GetHandle(),
       MOJO_HANDLE_SIGNAL_READABLE,
       base::Bind(&SyncChannel::OnDispatchHandleReady, base::Unretained(this)));
 }
 
 void SyncChannel::OnChannelInit() {
   pre_init_sync_message_filters_.clear();
 }
 
 }  // namespace IPC