Disable fernet key rotation under root

After enabling rsync-based fernet rotation
it appeared that need to disable old root crontab entry in
order to avoid simultaneous 2-times rotation

Change-Id: I8b95ede0d246765d58b15ad9b06b755ec88e8abd
Related-PROD: PROD-22540
diff --git a/keystone/client/core.yml b/keystone/client/core.yml
index 899f4aa..8c73b16 100644
--- a/keystone/client/core.yml
+++ b/keystone/client/core.yml
@@ -3,12 +3,13 @@
 parameters:
   _param:
     keystone_service_protocol: http
+###TODO: the section below should be removed in the future together with same related changes in cookiecutter-templates (control_init.yml)
   linux:
     system:
       job:
         keystone_job_rotate:
           command: '/usr/bin/keystone-manage fernet_rotate --keystone-user keystone --keystone-group keystone >> /var/log/key_rotation_log 2>> /var/log/key_rotation_log'
-          enabled: true
+          enabled: false
           user: root
           minute: 0
   keystone: