Update API doc for cluster_host

Correct mistakes on `joined` field and add more details on `destroy` message.

Signed-off-by: Vincent Liu <[email protected]>

ocaml/idl/datamodel_cluster_host.ml

@@ -31,7 +31,10 @@ let create =
     ()
 
 let destroy =
-  call ~name:"destroy" ~doc:"Remove a host from an existing cluster."
+  call ~name:"destroy"
+    ~doc:
+      "Remove the host from an existing cluster. This operation is allowed \
+       even if a cluster host is not enabled."
     ~params:
       [
         ( Ref _cluster_host
@@ -117,10 +120,8 @@ let t =
            ~default_value:(Some (VBool true))
            "Whether the cluster host has joined the cluster. Contrary to \
             enabled, a host that is not joined is not considered a member of \
-            the cluster, and hence no operations (e.g. enable/disable) can be \
-            performed on this host. This field can be altered by calling leave \
-            or destroy on a cluster host. It can also be set automatically if \
-            cluster stack believes that this node is not part of the cluster. "
+            the cluster, and hence enable and disable operations cannot be \
+            performed on this host."
        ; field ~qualifier:DynamicRO ~lifecycle:[] ~ty:Bool "live"
            ~default_value:(Some (VBool false))
            "Whether the underlying cluster stack thinks we are live. This \

ocaml/idl/schematest.ml

@@ -3,7 +3,7 @@ let hash x = Digest.string x |> Digest.to_hex
 (* BEWARE: if this changes, check that schema has been bumped accordingly in
    ocaml/idl/datamodel_common.ml, usually schema_minor_vsn *)
 
-let last_known_schema_hash = "1e43ef93af9de55620fda75281e8a992"
+let last_known_schema_hash = "2de13a69470d10b12910322f8a6bce85"
 
 let current_schema_hash : string =
   let open Datamodel_types in