removed wxXmlResource::GetFirstRoot for reasons explained at wx-dev

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17792 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/src/xrc/xmlres.cpp

@@ -146,17 +146,6 @@ void wxXmlResource::ClearHandlers()
 }
 
 
-wxXmlNode  *wxXmlResource::GetFirstRoot()
-{
-    UpdateResources(); //ensure everything is up-to-date
-    
-    if (m_data.GetCount() == 0) return NULL;
-    
-    if (m_data[0].Doc == NULL) return NULL;
-       
-    return m_data[0].Doc->GetRoot();
-}
-
 wxMenu *wxXmlResource::LoadMenu(const wxString& name)
 {
     return (wxMenu*)CreateResFromNode(FindResource(name, wxT("wxMenu")), NULL, NULL);