Stop creating unused cron/logrotate directory

This is unused since we switched to a single config file for logrotate.

Change-Id: I79a5fd84b071b2a127c09ac41c3de9074289fca0
(cherry picked from commit 834e68a)

Author: priteau

ansible/roles/common/tasks/config.yml

@@ -14,7 +14,6 @@
     - - service_name: "cron"
         paths:
           - "cron"
-          - "cron/logrotate"
       - service_name: "fluentd"
         paths:
           - "fluentd"