Remove Yoshi charger recall pop up warning UI code.

ash/system/tray/system_tray_delegate.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 ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 181 matching lines @@
 
   // Shows information about enterprise enrolled devices.
   virtual void ShowEnterpriseInfo() = 0;
 
   // Shows information about supervised users.
   virtual void ShowSupervisedUserInfo() = 0;
 
   // Shows login UI to add other users to this session.
   virtual void ShowUserLogin() = 0;
 
-  // Shows the spring charger replacement dialog if necessary.
-  // Returns true if the dialog is shown by the call.
-  virtual bool ShowSpringChargerReplacementDialog() = 0;
-
-  // True if the spring charger replacement dialog is visible.
-  virtual bool IsSpringChargerReplacementDialogVisible() = 0;
-
-  // True if user has confirmed using safe spring charger.
-  virtual bool HasUserConfirmedSafeSpringCharger() = 0;
-
   // Attempts to shut down the system.
   virtual void ShutDown() = 0;
 
   // Attempts to sign out the user.
   virtual void SignOut() = 0;
 
   // Attempts to lock the screen.
   virtual void RequestLockScreen() = 0;
 
   // Attempts to restart the system for update.
@@ skipping 83 matching lines @@
   virtual void AddCustodianInfoTrayObserver(
       CustodianInfoTrayObserver* observer) = 0;
 
   virtual void RemoveCustodianInfoTrayObserver(
       CustodianInfoTrayObserver* observer) = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_