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);
    }

}