Remove support for Win9x from wxMSW.

Most importantly, this allows us to remove all MSLU-related stuff.

Some functions which were previously loaded dynamically can now be just used
directly, too.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76535 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

setup.h_vms

@@ -701,10 +701,6 @@ typedef pid_t GPid;
 
 /* --- start MSW options --- */
 
-#ifndef wxUSE_UNICODE_MSLU
-    #define wxUSE_UNICODE_MSLU 0
-#endif
-
 #define wxUSE_MFC           0
 
 #define wxUSE_OLE           0