Kill dead IFWL_*::Initialize() variants dead.

xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp

Index: xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp
diff --git a/xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp b/xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp
index a3fc2b17e0c2c7f2585c65f83bf69acff80d1122..ec44d9c2de481a0e4f274138482ac30a113bc574 100644
--- a/xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp
+++ b/xfa/src/fwl/src/basewidget/fwl_scrollbarimp.cpp
@@ -16,12 +16,6 @@ IFWL_ScrollBar* IFWL_ScrollBar::Create() {
 }
 IFWL_ScrollBar::IFWL_ScrollBar() {
 }
-FWL_ERR IFWL_ScrollBar::Initialize(IFWL_Widget* pOuter) {
-  CFWL_ScrollBarImp* pScrollBarImpl = new CFWL_ScrollBarImp(pOuter);
-  SetImpl(pScrollBarImpl);
-  pScrollBarImpl->SetInterface(this);
-  return pScrollBarImpl->Initialize();
-}
 FWL_ERR IFWL_ScrollBar::Initialize(const CFWL_WidgetImpProperties& properties,
                                    IFWL_Widget* pOuter) {
   CFWL_ScrollBarImp* pScrollBarImpl = new CFWL_ScrollBarImp(properties, pOuter);