Revert "[Smart Lock, UI] First run expience for Auto sign-in prompt."

chrome/browser/ui/android/infobars/auto_signin_first_run_infobar.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_UI_ANDROID_INFOBARS_AUTO_SIGNIN_FIRST_RUN_INFOBAR_H_
-#define CHROME_BROWSER_UI_ANDROID_INFOBARS_AUTO_SIGNIN_FIRST_RUN_INFOBAR_H_
-
-#include "base/macros.h"
-#include "chrome/browser/password_manager/auto_signin_first_run_infobar_delegate.h"
-#include "chrome/browser/ui/android/infobars/confirm_infobar.h"
-
-// The Android infobar that offers the user the ability to save a password
-// for the site.
-class AutoSigninFirstRunInfoBar : public ConfirmInfoBar {
- public:
-  explicit AutoSigninFirstRunInfoBar(
-      scoped_ptr<AutoSigninFirstRunInfoBarDelegate> delegate);
-
-  ~AutoSigninFirstRunInfoBar() override;
-
-  static bool Register(JNIEnv* env);
-
- private:
-  // ConfirmInfoBar:
-  base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
-      JNIEnv* env) override;
-  void OnLinkClicked(JNIEnv* env,
-                     const base::android::JavaParamRef<jobject>& obj) override;
-
-  DISALLOW_COPY_AND_ASSIGN(AutoSigninFirstRunInfoBar);
-};
-
-#endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_AUTO_SIGNIN_FIRST_RUN_INFOBAR_H_