remove hostPath ref (#151)

docs/modules/ROOT/pages/backup-restore.adoc

@@ -6,15 +6,13 @@
 
 This topic assumes that you know about Persistence in Hazelcast. To learn about Persistence, see the xref:hazelcast:storage:persistence.adoc[Platform documentation].
 
-The Operator supports two volume options for enabling Persistence: PVC and `HostPath`. We recommend using PVC, so the examples on this page use this option. If you need to use `HostPath`, see <<hostpath,  HostPath Support for Persistence>>.
-
 There are two options for a backup: local and external. Local backups are kept in volume and never moved anywhere whereas external backups are moved into buckets provided by the user. 
 
 TIP: For a working example, see link:https://docs.hazelcast.com/tutorials/hazelcast-platform-operator-external-backup-restore[this tutorial].
 
 == Enabling Persistence
 
-Enabling Hazelcast is done with the following configuration.
+Enabling Hazelcast persistence is done with the following configuration.
 
 
 [source,yaml,subs="attributes+"]