Remove earlier completed todo

classes/manager/step_manager.php

@@ -175,7 +175,6 @@ class step_manager extends subplugin_manager {
      * @return array of step instances.
      */
     public static function get_step_instances($workflowid) {
-        // TODO: Alter calls to include workflow id.
         global $DB;
         $records = $DB->get_records('tool_lifecycle_step', array(
             'workflowid' => $workflowid