Removed check for RabbitMQ partitions on the undercloud

This task in the check playbook checks the undercloud
for RabbitMQ partitions and fails the playbook if none
are found.

This is wrong for two reasons.

1. Only the overcloud should be partitioned, the undercloud
   runs the undercloud and nothing else, no partitions
   are required.

2. This check does not have sufficient permissions to access
   the files required to even check for partitions. It would
   need to run with sudo.

The check as been removed as it is does nothing useful.

Closes-Bug:1593314

Change-Id: Ibb8cd19316cad21f0a0501222d5c3465e797f48f

ansible/check/roles/undercloud/tasks/main.yml

@@ -37,12 +37,6 @@
   failed_when: bz1282491.stdout|int < rabbitmq_fd
   ignore_errors: yes
 
-- name : Check rabbitmq for partitions
-  shell: rabbitmqctl cluster_status | grep partitions -A 1 | grep -q controller
-  register: rabbit_partitioned
-  changed_when: no
-  failed_when: rabbit_partitioned.rc == 0
-
 - name: Run MySQL Tuner script
   script: mysqltuner.pl --nocolor
   register: mysql_out