remove unneeded DoGetClientSize

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41081 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/mdi.h

@@ -64,8 +64,6 @@ public:
 protected:
     void Init();
 
-    virtual void DoGetClientSize(int *width, int *height) const;
-
 private:
     friend class wxMDIChildFrame;
 

src/gtk/mdi.cpp

@@ -241,11 +241,6 @@ void wxMDIParentFrame::OnInternalIdle()
     }
 }
 
-void wxMDIParentFrame::DoGetClientSize(int *width, int *height ) const
-{
-    wxFrame::DoGetClientSize( width, height );
-}
-
 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 {
     if (!m_clientWindow) return (wxMDIChildFrame*) NULL;