refactor: remove forum and topic feature chains

assets/js/widget-set.js

@@ -42,7 +42,6 @@
           tab_count: tabCount,
           style: style,
           paginate: paginate,
-          topics: tab.getAttribute('data-topics') || '',
           limit_day: tab.getAttribute('data-limit-day') || '0',
           pay_type: tab.getAttribute('data-pay-type') || '',
         });