Remove elasticsearch01

This host hasn't existed in years. Make that clearer in system-config by
removing it.

Change-Id: Ie11151c00ab32ea249be0f539952660cefc0fa2d

hiera/common.yaml

@@ -209,7 +209,6 @@ cacti_hosts:
 - bridge.openstack.org
 - cacti.openstack.org
 - eavesdrop.openstack.org
-- elasticsearch01.openstack.org
 - elasticsearch02.openstack.org
 - elasticsearch03.openstack.org
 - elasticsearch04.openstack.org

modules/openstack_project/manifests/logstash.pp

@@ -15,7 +15,7 @@
 # Logstash web frontend glue class.
 #
 class openstack_project::logstash (
-  $discover_nodes = ['elasticsearch01.openstack.org:9200'],
+  $discover_nodes = ['elasticsearch02.openstack.org:9200'],
   $statsd_host = 'graphite.opendev.org',
   $subunit2sql_db_host,
   $subunit2sql_db_pass,

modules/openstack_project/manifests/logstash_worker.pp

@@ -15,7 +15,7 @@
 # Logstash indexer worker glue class.
 #
 class openstack_project::logstash_worker (
-  $discover_node = 'elasticsearch01.openstack.org',
+  $discover_node = 'elasticsearch02.openstack.org',
   $filter_rev    = 'master',
   $filter_source = 'https://opendev.org/openstack/logstash-filters',
   $enable_mqtt = true,