fix: always show dashboard history for now, need a way to make dropdown more dynamic

public/app/core/nav_model_srv.ts

@@ -167,13 +167,11 @@ export class NavModelSrv {
         clickHandler: () => dashNavCtrl.openEditView('annotations')
       });
 
-      if (dashboard.version > 0) {
       menu.push({
         title: 'Version History',
         icon: 'fa fa-fw fa-history',
         clickHandler: () => dashNavCtrl.openEditView('history')
       });
-      }
 
       menu.push({
         title: 'View JSON',