Unfortunately, it's not unused.  The openid demo (and probably others) use it. Simply inheriting from WSF_URI_TEMPLATE_HELPER_FOR_ROUTED_SERVICE instead isn't sufficient, as it does not provide `execute'.

In the RESTBUCKS_SERVER example, I additionally inherit from WSF_ROUTED_SKELETON_SERVICE and WSF_NO_PROXY_POLICY. Doing that for the openid demo also is sufficient to get it to compile. 

I think I shall have to make the same change for all the failing demos.