->deleteTransition($this->transition->id());
$this->workflow->save();
- drupal_set_message($this->t('%transition transition deleted.', ['%transition' => $this->transition->label()]));
+ $this->messenger()->addStatus($this->t('%transition transition deleted.', ['%transition' => $this->transition->label()]));
$form_state->setRedirectUrl($this->getCancelUrl());
}