Fold IFWL*::{Initialize|Finalize} into constructor/destructor

xfa/fwl/core/fwl_noteimp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fwl/core/fwl_noteimp.h"
 
 #include "core/fxcrt/fx_ext.h"
 #include "third_party/base/stl_util.h"
@@ skipping 742 matching lines @@
     case CFWL_EventType::Idle:
       return !!(dwFilter & FWL_EVENT_IDLE_MASK);
     default:
       return !!(dwFilter & FWL_EVENT_CONTROL_MASK);
   }
 }
 
 CFWL_ToolTipContainer* CFWL_ToolTipContainer::s_pInstance = nullptr;
 
 CFWL_ToolTipContainer::CFWL_ToolTipContainer()
-    : m_pToolTipImp(nullptr), m_pToolTipDp(new CFWL_CoreToolTipDP(0, 2000)) {}
+    : m_pToolTipDp(new CFWL_CoreToolTipDP(0, 2000)) {}
 
-CFWL_ToolTipContainer::~CFWL_ToolTipContainer() {
-  if (m_pToolTipImp) {
-    IFWL_ToolTip* pToolTip = static_cast<IFWL_ToolTip*>(m_pToolTipImp);
-    pToolTip->Finalize();
-    delete pToolTip;
-  }
-}
+CFWL_ToolTipContainer::~CFWL_ToolTipContainer() {}
 
 // static
 CFWL_ToolTipContainer* CFWL_ToolTipContainer::getInstance() {
   if (!s_pInstance)
     s_pInstance = new CFWL_ToolTipContainer;
   return s_pInstance;
 }
 
 // static
 void CFWL_ToolTipContainer::DeleteInstance() {
   delete s_pInstance;
   s_pInstance = nullptr;
 }