[BI-2426] - disabled sub-entity menu option

sub-entity features will not be included in v1.1

Author: mlm483

src/views/experiments-and-observations/ExperimentDetails.vue

@@ -205,7 +205,7 @@ export default class ExperimentDetails extends ProgramsBase {
       new ActionMenuItem('experiment-import-file', 'import-file', 'Import file', this.$ability.can('create', 'Import')),
       new ActionMenuItem('experiment-download-file', 'download-file', 'Download file'),
       new ActionMenuItem('experiment-add-collaborator', 'add-collaborator', 'Add Collaborator',  this.$ability.can('manage', 'Collaborator')),
-      new ActionMenuItem('experiment-create-sub-entity-dataset', 'create-sub-entity-dataset', 'Create Sub-Entity Dataset')
+      // new ActionMenuItem('experiment-create-sub-entity-dataset', 'create-sub-entity-dataset', 'Create Sub-Entity Dataset')
   ];
 
   mounted () {