Fix all the code which has duplicate variable declarations

xfa/fwl/basewidget/fwl_datetimepickerimp.cpp

Index: xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
diff --git a/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp b/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
index 6e2b4dee9944e32c673ae20b6d7383c02cfd2c95..c6cef1c37dd8c3f0fa89b4a46cc342449ccb0263 100644
--- a/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
+++ b/xfa/fwl/basewidget/fwl_datetimepickerimp.cpp
@@ -326,10 +326,6 @@ void CFWL_DateTimeCalendarImpDelegate::OnLButtonUpEx(CFWL_MsgMouse* pMsg) {
                                iCurSel);
     pPicker->ShowMonthCalendar(FALSE);
   } else if (m_bFlag && (!rt.Contains(pMsg->m_fx, pMsg->m_fy))) {
-    IFWL_DateTimePicker* pIPicker =
-        static_cast<IFWL_DateTimePicker*>(m_pOwner->m_pOuter);
-    CFWL_DateTimePickerImp* pPicker =
-        static_cast<CFWL_DateTimePickerImp*>(pIPicker->GetImpl());
     pPicker->ShowMonthCalendar(FALSE);
   }
   m_bFlag = 0;