Do not show placeholder on pagination form type

Author: loevgaard

src/Form/Builder/SearchFormBuilder.php

@@ -113,6 +113,7 @@ private function buildPagination(SearchResult $searchResult, FormBuilderInterfac
             'choices' => $choices,
             'required' => false,
             'expanded' => true,
+            'placeholder' => false,
         ]);
     }
 }