Remove unused Group widget state

xfa/fwl/cfwl_widgetmgr.cpp

Index: xfa/fwl/cfwl_widgetmgr.cpp
diff --git a/xfa/fwl/cfwl_widgetmgr.cpp b/xfa/fwl/cfwl_widgetmgr.cpp
index 132544fa84455255720536346ef92ce031c7d809..8ad13de51a27da999634dee25b37ef958e0dd6ba 100644
--- a/xfa/fwl/cfwl_widgetmgr.cpp
+++ b/xfa/fwl/cfwl_widgetmgr.cpp
@@ -312,14 +312,6 @@ int32_t CFWL_WidgetMgr::CountRadioButtonGroup(CFWL_Widget* pFirst) const {
   return iRet;
 }
 
-CFWL_Widget* CFWL_WidgetMgr::GetRadioButtonGroupHeader(
-    CFWL_Widget* pRadioButton) const {
-  CFWL_Widget* pNext = pRadioButton;
-  if (pNext && (pNext->GetStyles() & FWL_WGTSTYLE_Group))
-    return pNext;
-  return nullptr;
-}
-
 void CFWL_WidgetMgr::GetSameGroupRadioButton(
     CFWL_Widget* pRadioButton,
     CFX_ArrayTemplate<CFWL_Widget*>& group) const {
@@ -330,7 +322,7 @@ void CFWL_WidgetMgr::GetSameGroupRadioButton(
   int32_t iGroup = CountRadioButtonGroup(pFirst);
   if (iGroup < 2)
     return;
-  group.Add(GetRadioButtonGroupHeader(pRadioButton));
+  group.Add(nullptr);
 }
 
 CFWL_Widget* CFWL_WidgetMgr::GetDefaultButton(CFWL_Widget* pParent) const {