Remove record.toJSON() (#14584)

* fix

* test

* change back

ui/app/adapters/policy.js

@@ -16,7 +16,7 @@ export default ApplicationAdapter.extend({
     return this.ajax(this.buildURL(type.modelName, name), 'PUT', { data }).then(() => {
       // doing this to make it like a Vault response - ember data doesn't like 204s if it's not a DELETE
       return {
-        data: assign({}, snapshot.record.toJSON(), { id: name }),
+        data: assign({}, this.serialize(snapshot), { id: name }),
       };
     });
   },