remove error

themes/custom/envigo/envigo.theme

@@ -31,35 +31,7 @@ function envigo_form_search_block_form_alter(&$form, &$form_state) {
   $form['actions']['submit']['#attributes']['class'][] = 'search-button';
 }
 
-function envigo_preprocess_menu(&$variables, $hook) {
-    if ($hook == 'menu') {
-        $current_path = \Drupal::request()->getRequestUri();
-        foreach ($variables['items'] as &$item) {
-            if ($item['in_active_trail']) {
-                if ($item['url']->toString() == $current_path) {
-                    $item['is_active'] = TRUE;
-                } elseif (count($item['below'])) {
-                    _themename_menu_process_submenu($item['below'], $current_path);
-                }
-            }
-        }
-    }
-}
 
-/**
- * Set active and active-trail class for sub-menus recursively.
- */
-function _envigo_menu_process_submenu(&$submenu, $current_path) {
-    foreach ($submenu as &$item) {
-        if ($item['in_active_trail']) {
-            if ($item['url']->toString() == $current_path) {
-                $item['is_active'] = TRUE;
-            } elseif (count($item['below'])) {
-                _themename_menu_process_submenu($item['below'], $current_path);
-            }
-        }
-    }
-}