Purge legacy cleanup tasks from older than 1 year (#4450)

We don't need to support upgrades from 2 year old installs,
just from the last major version.

Also changed most retried tasks to 1s delay instead of longer.

roles/container-engine/docker/handlers/main.yml

@@ -5,7 +5,6 @@
     - Docker | reload systemd
     - Docker | reload docker.socket
     - Docker | reload docker
-    - Docker | pause while Docker restarts
     - Docker | wait for docker
 
 - name: Docker | reload systemd
@@ -23,14 +22,9 @@
     name: docker
     state: restarted
 
-- name: Docker | pause while Docker restarts
-  pause:
-    seconds: 10
-    prompt: "Waiting for docker restart"
-
 - name: Docker | wait for docker
   command: "{{ docker_bin_dir }}/docker images"
   register: docker_ready
-  retries: 10
-  delay: 5
+  retries: 20
+  delay: 1
   until: docker_ready.rc == 0