Remove one-click signin inforbar, since its now replaced with the gaia

chrome/browser/ui/views/infobars/one_click_signin_infobar.h

-// Copyright (c) 2012 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_UI_VIEWS_INFOBARS_ONE_CLICK_SIGNIN_INFOBAR_H_
-#define CHROME_BROWSER_UI_VIEWS_INFOBARS_ONE_CLICK_SIGNIN_INFOBAR_H_
-
-#include "chrome/browser/ui/views/infobars/confirm_infobar.h"
-
-class OneClickSigninInfoBarDelegate;
-
-// A speialization of ConfirmInfoBar that allows changing the background
-// colour of the infobar as well as the colour of the OK button.  The behaviour
-// remains the same.
-class OneClickSigninInfoBar : public ConfirmInfoBar {
- public:
-  OneClickSigninInfoBar(InfoBarService* owner,
-                        OneClickSigninInfoBarDelegate* delegate);
-  virtual ~OneClickSigninInfoBar();
-
- private:
-  // ConfirmInfoBar overrides.
-  virtual void ViewHierarchyChanged(bool is_add,
-                                    views::View* parent,
-                                    views::View* child) OVERRIDE;
-
-  OneClickSigninInfoBarDelegate* one_click_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(OneClickSigninInfoBar);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_ONE_CLICK_SIGNIN_INFOBAR_H_