Remove cells v1 jobs

We're going to start ripping out cells v1. First step is removing the
tests for this soon-to-be-removed feature.

Part of blueprint remove-cells-v1

Change-Id: I2031bf2cc914d134e5ed61156d2cfc621f006e0b
Signed-off-by: Stephen Finucane <[email protected]>

Author: stephenfin

.zuul.yaml

@@ -108,12 +108,6 @@
       python_version: 3.7
     timeout: 3600
 
-- job:
-    name: nova-cells-v1
-    parent: nova-dsvm-base
-    run: playbooks/legacy/nova-cells-v1/run.yaml
-    post-run: playbooks/legacy/nova-cells-v1/post.yaml
-
 - job:
     name: nova-live-migration
     parent: nova-dsvm-multinode-base
@@ -308,7 +302,6 @@
             irrelevant-files: *dsvm-irrelevant-files
         - tempest-pg-full:
             irrelevant-files: *dsvm-irrelevant-files
-        - nova-cells-v1
         - nova-tempest-full-oslo.versionedobjects:
             irrelevant-files: *dsvm-irrelevant-files
         - legacy-tempest-dsvm-nova-libvirt-kvm-apr: