Removed WXWIN_COMPATIBILITY_2_2 together with code guarded by it.

Changed default for WXWIN_COMPATIBILITY_2_4 to 0.
  Added WXWIN_COMPATIBILITY_2_6 (defaults to 1).
  Ran build/update-setup-h.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35858 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/radiobox.cpp

@@ -658,23 +658,4 @@ wxRadioBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
     return attr;
 }
 
-#if WXWIN_COMPATIBILITY_2_2
-
-int wxRadioBox::Number() const
-{
-    return GetCount();
-}
-
-wxString wxRadioBox::GetLabel(int n) const
-{
-    return GetString(n);
-}
-
-void wxRadioBox::SetLabel( int item, const wxString& label )
-{
-    SetString(item, label);
-}
-
-#endif // WXWIN_COMPATIBILITY_2_2
-
 #endif // wxUSE_RADIOBOX