Switch telemetry to using gnocchi archive policies

As example of Gnocchi archive policy usage default policy was created
and used for all metrics aggregation. The default policy is a copy
of Gnocchi medium policy, it can be used for testing Gnocchi policy
creation.

Also haproxy and nginx configuration is removed for ceilometer, because
ceilometer api is deprecated in Pike.

Change-Id: Iee942bc17195277e602c27c6e1d9ee739db975a9
Related-Prod: https://mirantis.jira.com/browse/PROD-21282
diff --git a/classes/cluster/virtual-mcp-pike-ovs/.env b/classes/cluster/virtual-mcp-pike-ovs/.env
index 006f9e8..61c3d9e 100644
--- a/classes/cluster/virtual-mcp-pike-ovs/.env
+++ b/classes/cluster/virtual-mcp-pike-ovs/.env
@@ -1 +1 @@
-FORMULAS_SALT_MASTER+=(fluentd git grafana linux nginx ntp openssh prometheus reclass rsyslog salt sphinx telegraf backupninja logrotate auditd)
+FORMULAS_SALT_MASTER+=(fluentd git grafana linux nginx ntp openssh prometheus reclass rsyslog salt sphinx telegraf backupninja logrotate auditd gnocchi)