Remove Password Authentication code that is no longer used.

chrome/browser/ui/android/infobars/save_password_infobar.h

-// Copyright 2014 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_SAVE_PASSWORD_INFOBAR_H_
-#define CHROME_BROWSER_UI_ANDROID_INFOBARS_SAVE_PASSWORD_INFOBAR_H_
-
-#include "base/basictypes.h"
-#include "base/strings/string16.h"
-#include "chrome/browser/password_manager/save_password_infobar_delegate.h"
-#include "chrome/browser/ui/android/infobars/confirm_infobar.h"
-
-// InfoBar implementation for saving passwords to be used for autofill.
-class SavePasswordInfoBar : public ConfirmInfoBar {
- public:
-  explicit SavePasswordInfoBar(
-      scoped_ptr<SavePasswordInfoBarDelegate> delegate);
-  virtual ~SavePasswordInfoBar();
-
-  void SetUseAdditionalAuthentication(JNIEnv* env,
-                                      jobject obj,
-                                      bool use_additional_authentication);
-
- private:
-  // ConfirmInfoBar:
-  virtual base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
-      JNIEnv* env) override;
-
-  SavePasswordInfoBarDelegate* GetDelegate();
-
-  base::android::ScopedJavaGlobalRef<jobject> java_save_password_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(SavePasswordInfoBar);
-};
-
-// Registers native methods.
-bool RegisterSavePasswordInfoBar(JNIEnv* env);
-
-#endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_SAVE_PASSWORD_INFOBAR_H_