Issue #3100732: Allow specifying `meta` data on JSON:API objects

core/modules/node/src/Plugin/views/row/Rss.php

@@ -119,15 +119,6 @@ public function render($row) {
     if (!empty($node->rss_namespaces)) {
       $this->view->style_plugin->namespaces = array_merge($this->view->style_plugin->namespaces, $node->rss_namespaces);
     }
-    elseif (function_exists('rdf_get_namespaces')) {
-      // Merge RDF namespaces in the XML namespaces in case they are used
-      // further in the RSS content.
-      $xml_rdf_namespaces = [];
-      foreach (rdf_get_namespaces() as $prefix => $uri) {
-        $xml_rdf_namespaces['xmlns:' . $prefix] = $uri;
-      }
-      $this->view->style_plugin->namespaces += $xml_rdf_namespaces;
-    }
 
     $item = new \stdClass();
     if ($display_mode != 'title') {