[TASK] Remove double header

Classes/Preview/PreviewRenderer.php

@@ -52,13 +52,8 @@ class PreviewRenderer implements PreviewRendererInterface {
 	 * @return string
 	 */
 	public function renderPageModulePreviewHeader(GridColumnItem $item): string {
-		$label = BackendUtility::getLabelFromItemListMerged(
-			$item->getRecord()['pid'],
-			'tt_content',
-			'list_type',
-			$item->getRecord()['list_type']
-		);
-		return '<h4><span class="label label-primary">' . $this->languageService->sL($label) . '</span>&nbsp;</h4>';
+		// @todo: when v12 hits, add header from PluginRenderer
+		return '';
 	}
 
 	/**