removed whitespace

trigger/categories/lib.php

@@ -117,9 +117,7 @@ class categories extends base_automatic {
      * @throws \dml_exception
      */
     public function extend_add_instance_form_definition($mform) {
-        
         $displaylist = core_course_category::make_categories_list();
-        
         $options = array(
             'multiple' => true,
             'noselectionstring' => get_string('categories_noselection', 'lifecycletrigger_categories'),