Revert of tools/battor_agent: Adds a tool to find connected BattOrs

tools/battor_agent/battor_finder.cc

-// 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 "tools/battor_agent/battor_finder.h"
-
-#include "device/serial/serial.mojom.h"
-#include "device/serial/serial_device_enumerator.h"
-#include "mojo/public/cpp/bindings/array.h"
-
-namespace battor {
-
-namespace {
-
-// The USB display name prefix that all BattOrs have.
-const char kBattOrDisplayNamePrefix[] = "BattOr";
-
-}  // namespace
-
-// Returns the path of the first BattOr that we find.
-std::string BattOrFinder::FindBattOr() {
-  scoped_ptr<device::SerialDeviceEnumerator> serial_device_enumerator =
-      device::SerialDeviceEnumerator::Create();
-
-  mojo::Array<device::serial::DeviceInfoPtr> devices =
-      serial_device_enumerator->GetDevices();
-
-  for (size_t i = 0; i < devices.size(); i++) {
-    std::string display_name = devices[i]->display_name.get();
-
-    if (display_name.find(kBattOrDisplayNamePrefix) != std::string::npos) {
-      return devices[i]->path;
-    }
-  }
-
-  return std::string();
-}
-
-}  // namespace battor