Revert of Establish MojoChildConnection from BrowserChildProcessHostImpl

content/public/browser/browser_child_process_host_delegate.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 "content/public/browser/browser_child_process_host_delegate.h"
 
 namespace content {
 
 bool BrowserChildProcessHostDelegate::CanShutdown() {
   return true;
 }
 
+shell::InterfaceProvider*
+BrowserChildProcessHostDelegate::GetRemoteInterfaces() {
+  return nullptr;
+}
+
 }  // namespace content