Remove DownloadProcessService code path

content/app/android/download_main.cc

Index: content/app/android/download_main.cc
diff --git a/content/app/android/download_main.cc b/content/app/android/download_main.cc
deleted file mode 100644
index fa759337c2ca32494a63f6ab2be51f87e8375b7b..0000000000000000000000000000000000000000
--- a/content/app/android/download_main.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2016 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 "base/message_loop/message_loop.h"
-#include "base/run_loop.h"
-#include "base/threading/platform_thread.h"
-#include "content/public/common/main_function_params.h"
-
-namespace content {
-
-// Mainline routine for running as the download process.
-int DownloadMain(const MainFunctionParams& parameters) {
-  // The main message loop of the utility process.
-  base::MessageLoop main_message_loop;
-  base::PlatformThread::SetName("CrDownloadMain");
-  base::RunLoop().Run();
-
-  return 0;
-}
-
-}  // namespace content