Yes, we want to remove those from the template chooser, since we don't have those services we want our enterprise templates showing there. The two options that are turned off do show they can't use after choosing but that's confusing for people. It sounds like there's no way to clean those out, which sucks. We end up having to explain not to use those because it looks broken to users and skip over them to get to the 'real' templates.
Disabling those in the Approvals app should turn them off in that chooser.