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/include/wx/xrc/xmlres.h

@@ -115,10 +115,6 @@ public:
     // Destructor.
     ~wxXmlResource();
 
-    // Gives access to the first root node for
-    // direct manipulation or querying
-    wxXmlNode  *GetFirstRoot();
-    
     // Loads resources from XML files that match given filemask.
     // This method understands VFS (see filesys.h).
     bool Load(const wxString& filemask);