refactor: remove forum and topic feature chains

inc/helpers/homepage/content.php

@@ -63,7 +63,7 @@ if (!function_exists('aksrt_homepage_get_tab_query')) {
 
 		$term = get_term($term_id);
 		$taxonomy = ($term && !is_wp_error($term)) ? (string) $term->taxonomy : 'category';
-		if (!in_array($taxonomy, ['category', 'topics'], true)) {
+		if ($taxonomy !== 'category') {
 			$taxonomy = 'category';
 		}