ci: Drop f27-sanity testsuite

This started out as an experiment to see how useful it'd be in
rpm-ostree. Again, the goal wasn't to leverage the rpm-ostree-specific
tests of a-h-t here, but rather running the *other* tests to ensure that
we weren't inadvertedly impacting userspace. In the end, as far as I
remember, it hasn't brought up anything since adding it here, so let's
bring the experiment to an end.

It might still be worth doing this same experiment in the ostree CI
instead, though I don't want to add more load there until we fully
switch over to the new CI infra.

Closes: #1369
Approved by: cgwalters

.papr.yml

@@ -157,34 +157,3 @@ tests:
 
 artifacts:
   - ex-container-logs
-
----
-
-branches:
-  - master
-  - auto
-  - try
-
-cluster:
-  hosts:
-    - name: testnode
-      distro: fedora/27/atomic
-  container:
-    image: registry.fedoraproject.org/fedora:27
-
-context: f27-sanity
-
-# https://bugzilla.redhat.com/show_bug.cgi?id=1483553
-#packages:
-#  - ansible
-#  - git
-#  - rsync
-
-env:
-  CI_PKGS: git rsync python-virtualenv
-
-tests:
-  - ci/build.sh
-  - git clone https://github.com/projectatomic/atomic-host-tests
-  - make vmoverlay HOSTS=testnode
-  - cd atomic-host-tests && ./.test_director