Revert "Increase nofile limit for Issue #410 to cover 65k limit of mariadb"

This reverts commit 09b2bd983ca5a14ace557a6e172311cf4dd9d01c.
Revert "Issue #403 adding galera alarm"

This reverts commit 1c0c5b84d8c866db1bd2dc55019917b30c9b3fb7.

Conflicts:
	rpc_deployment/playbooks/monitoring/maas_local.yml