qapi: Drop redundant alternate-good test The alternate-good.json test was already covered by qapi-schema-test.json. As future commits will be tweaking how alternates are laid out, removing the duplicate test now reduces churn. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1444710158-8723-4-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>