Revert "Reword help text for volume-types"

This reverts commit cf1a94d.

Author: m-bull

ui-meta/slurm-infra-fast-volume-type.yml

@@ -42,10 +42,12 @@ parameters:
     label: Provision high-performance storage for home directories
     description: |
       If a high-performance storage type is available to the Slurm platform,
-      use it for cluster home directories.
+      use it for cluster home directories. If no high-performance storage type
+      is available, this option has no effect and a standard cloud volume will
+      be provisioned for home directories.
     kind: boolean
     required: false
-    default: false
+    default: true
     options:
       checkboxLabel: Put home directories on high-performance storage?