MC-3029: Update Reader and Generate Allowed Parents List

- remove whitespace at end of line

Author: krissyhiserote

app/code/Magento/PageBuilder/Model/Config/ContentType/Converter.php

@@ -608,7 +608,7 @@ private function getAttributeValue(\DOMElement $attributeNode, $attributeName)
 
     /**
      * Remove data from array
-     * 
+     *
      * @param $searchValue
      * @param $data
      * @return array