Don't run the Autonym scenarios in beta sites, because they fail

This is supposed to be addressed more thoroughly in
I5c7433b917b8d7f79f706a4a7a97a6c6a9a6afa2
but until that is merged, they shouldn't run and cause failures.

Change-Id: Ie4e96f2cb0846b9117a26e9bfd902bbcab04eafd