Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/login_status.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.
-
-#ifndef ASH_LOGIN_STATUS_H_
-#define ASH_LOGIN_STATUS_H_
-
-namespace ash {
-
-enum class LoginStatus {
-  NOT_LOGGED_IN,  // Not logged in
-  LOCKED,         // A user has locked the screen
-  USER,           // A regular user is logged in
-  OWNER,          // The owner of the device is logged in
-  GUEST,          // A guest is logged in (i.e. incognito)
-  PUBLIC,         // A public account is logged in
-  SUPERVISED,     // A supervised user is logged in
-  KIOSK_APP,      // Is in kiosk app mode
-  ARC_KIOSK_APP   // Is in ARC kiosk mode
-};
-
-}  // namespace ash
-
-#endif  // ASH_LOGIN_STATUS_H_