Remove ClientLogin support from remoting host

remoting/base/auth_token_util.cc

-// Copyright (c) 2011 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 "remoting/base/auth_token_util.h"
-#include "remoting/base/constants.h"
-
-namespace remoting {
-
-void ParseAuthTokenWithService(const std::string& auth_service_with_token,
-                               std::string* auth_token,
-                               std::string* auth_service) {
-  size_t delimiter_pos = auth_service_with_token.find(':');
-  if (delimiter_pos == std::string::npos) {
-    // Legacy case: there is no delimiter. Assume the whole string is the
-    // auth_token, and that we're using the default service.
-    //
-    // TODO(ajwong): Remove this defaulting once all webclients are migrated.
-    // BUG:83897
-    auth_token->assign(auth_service_with_token);
-    auth_service->assign(kChromotingTokenDefaultServiceName);
-  } else {
-    auth_service->assign(auth_service_with_token.substr(0, delimiter_pos));
-
-    // Make sure there is *something* after the delimiter before doing substr.
-    if (delimiter_pos < auth_service_with_token.size()) {
-      auth_token->assign(auth_service_with_token.substr(delimiter_pos + 1));
-    } else {
-      auth_token->clear();
-    }
-  }
-}
-
-}  // namespace remoting