Revert "Save registry logs"

This reverts commit f49bf96c32.

This has an error:
The task includes an option with an undefined variable. The error was: 'ansible_user_dir' is undefined

Change-Id: I679499751aec72922ea5063350f446f13579776c

playbooks/buildset-registry/post.yaml

@@ -1,16 +1,3 @@
 - hosts: localhost
   roles:
     - push-to-intermediate-registry
-  tasks:
-    - name: Create container log dir
-      file:
-        path: "{{ ansible_user_dir }}/zuul-output/logs/docker"
-        state: directory
-
-    - name: Save registry container logs
-      loop:
-        - buildset_proxy
-        - buildset_registry
-      shell: "docker logs {{ item }} &> {{ ansible_user_dir }}/zuul-output/logs/docker/{{item}}.txt"
-      args:
-        executable: /bin/bash