class RemoveSectionForm

class RemoveSectionForm extends LayoutRebuildConfirmFormBase {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'layout_builder_remove_section';
  }

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    $configuration = $this->sectionStorage
      ->getSection($this->delta)
      ->getLayoutSettings();

    // Layouts may choose to use a class that might not have a label
    // configuration.
    if (!empty($configuration['label'])) {
      return $this
        ->t('Are you sure you want to remove @section?', [
        '@section' => $configuration['label'],
      ]);
    }
    return $this
      ->t('Are you sure you want to remove section @section?', [
      '@section' => $this->delta + 1,
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this
      ->t('Remove');
  }

  /**
   * {@inheritdoc}
   */
  protected function handleSectionStorage(SectionStorageInterface $section_storage, FormStateInterface $form_state) {
    $section_storage
      ->removeSection($this->delta);
  }

}