This symbol is not used since a very long time as XPM support is now always available in wxMSW and most of its occurrences were removed almost 10 years ago, just remove the remaining ones too. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73748 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775