Remove no longer used annotation use statements and replace with attribute use statements

src/Bundle/ChillMainBundle/Export/Formatter/CSVFormatter.php

@@ -119,7 +119,7 @@ class CSVFormatter implements FormatterInterface
         array $exportData,
         array $filtersData,
         array $aggregatorsData,
-    ): \Symfony\Component\HttpFoundation\Response {
+    ): Response {
         $this->result = $result;
         $this->orderingHeaders($formatterData);
         $this->export = $this->exportManager->getExport($exportAlias);