Remove events which are not processed

xfa/fwl/core/ifwl_combolist.cpp

 // Copyright 2016 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/ifwl_combolist.h"
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_msgkey.h"
@@ skipping 153 matching lines @@
     }
 
     CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
     if (!hItem)
       return;
     if (!m_pProperties->m_pDataProvider)
       return;
 
     IFWL_ListBoxDP* pData =
         static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-    int32_t iSel = pData->GetItemIndex(this, hItem);
-    CFWL_EvtCmbHoverChanged event;
-    event.m_pSrcTarget = m_pOuter;
-    event.m_iCurHover = iSel;
-    DispatchEvent(&event);
-    ChangeSelected(iSel);
+    ChangeSelected(pData->GetItemIndex(this, hItem));
   } else if (m_bNotifyOwner) {
     ClientToOuter(pMsg->m_fx, pMsg->m_fy);
     IFWL_ComboBox* pOuter = static_cast<IFWL_ComboBox*>(m_pOuter);
     pOuter->GetDelegate()->OnProcessMessage(pMsg);
   }
 }
 
 void IFWL_ComboList::OnDropListLButtonDown(CFWL_MsgMouse* pMsg) {
   if (GetRTClient().Contains(pMsg->m_fx, pMsg->m_fy))
     return;
@@ skipping 78 matching lines @@
       CFX_RectF rtInvalidate;
       rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width,
                        m_pProperties->m_rtWidget.height);
       Repaint(&rtInvalidate);
       break;
     }
     default:
       break;
   }
 }