purge-cluster: we don't support sysv or upstart anymore

Now that ceph-ansible only supports > jewel we don't need
to bother with sysv or upstart

Signed-off-by: Andrew Schoen <aschoen@redhat.com>

infrastructure-playbooks/purge-cluster.yml

@@ -481,19 +481,6 @@
      path: /var/log/ceph
      state: absent
 
-  - name: remove from sysv
-    shell: "update-rc.d -f ceph remove"
-    when: ansible_service_mgr == 'sysvinit'
-
-  - name: remove upstart and sysv files
-    shell: "find /etc -name '*ceph*' -delete"
-    when: ansible_service_mgr == 'upstart'
-
-  - name: remove upstart and apt logs and cache
-    shell: "find /var -name '*ceph*' -delete"
-    failed_when: false
-    when: ansible_distribution == 'Ubuntu'
-
   - name: request data removal
     local_action: shell echo requesting data removal
     become: false