widl: Also create proxies/stubs for interfaces marked with oleautomation.

tools/widl/proxy.c

@@ -768,7 +768,6 @@ int need_proxy(const type_t *iface)
 {
     if (!is_object( iface )) return 0;
     if (is_local( iface->attrs )) return 0;
-    if (is_attr( iface->attrs, ATTR_OLEAUTOMATION )) return 0;
     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
     return 1;
 }