Remove unused FWL Panel code.

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/include/fx_ext.h"
 #include "xfa/fwl/basewidget/fwl_tooltipctrlimp.h"
 #include "xfa/fwl/basewidget/ifwl_tooltip.h"
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/fwl_appimp.h"
 #include "xfa/fwl/core/fwl_formimp.h"
-#include "xfa/fwl/core/fwl_panelimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
 #include "xfa/fwl/core/fwl_threadimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 #include "xfa/fwl/core/fwl_widgetmgrimp.h"
 #include "xfa/fwl/core/ifwl_adapterwidgetmgr.h"
 #include "xfa/fwl/core/ifwl_app.h"
 #include "xfa/fwl/core/ifwl_tooltiptarget.h"
 
 CFWL_NoteLoop::CFWL_NoteLoop(CFWL_WidgetImp* pForm)
     : m_pForm(pForm), m_bContinueModal(TRUE) {}
@@ skipping 961 matching lines @@
   if (HasToolTip(pEvt->m_pDstTarget) && NULL != m_pToolTipImp) {
     m_pToolTipImp->Hide();
     pCurTarget = NULL;
     return TRUE;
   }
   return FALSE;
 }
 IFWL_ToolTipTarget* CFWL_ToolTipContainer::GetCurrentToolTipTarget() {
   return pCurTarget;
 }