Revert of Build services as standalone executables

services/service_manager/public/cpp/standalone_service/standalone_service.h

-// 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/callback.h"
-#include "services/service_manager/public/interfaces/service.mojom.h"
-
-namespace service_manager {
-
-using StandaloneServiceCallback = base::Callback<void(mojom::ServiceRequest)>;
-
-// Runs a standalone service in the current process. This takes care of setting
-// up a boilerplate environment, including initializing //base objects, Mojo
-// IPC, running a MessageLoop, and establishing a connection to the Service
-// Manager via canonical command-line arguments.
-//
-// Once a Service request is obtained, |callback| is invoked with it. This call
-// blocks until |callback| returns.
-//
-// NOTE: A typical service should also link against the main() defined in
-// main.cc (next to this header) and thus have no need to call this function
-// directly.
-void RunStandaloneService(const StandaloneServiceCallback& callback);
-
-}  // namespace service_manager