Revert of Added affiliation IDs for the new affiliation determination.

chrome/browser/chromeos/login/users/affiliation.h

-// Copyright 2015 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 CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_
-
-#include <set>
-#include <string>
-
-namespace chromeos {
-
-typedef std::set<std::string> AffiliationIDSet;
-
-// Returns true if there is at least one common element in two sets.
-// Complexity: O(n + m), where n - size of the first set, m - size of
-// the second set.
-bool HaveCommonElement(const std::set<std::string>& set1,
-                       const std::set<std::string>& set2);
-
-// TODO(peletskyi): Remove email and enterprise domain after affiliation
-// based implementation will fully work. http://crbug.com/515476
-// The function makes a decision if user with |user_affiliation_ids| and
-// |email| is affiliated on the device with |device_affiliation_ids| and
-// |enterprise_domain|.
-bool IsUserAffiliated(const AffiliationIDSet& user_affiliation_ids,
-                      const AffiliationIDSet& device_affiliation_ids,
-                      const std::string& email,
-                      const std::string& enterprise_domain);
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_