DX: Fix aggregator: "group activity by reason"

src/Bundle/ChillActivityBundle/Export/Aggregator/PersonAggregators/ActivityReasonAggregator.php

@@ -99,12 +99,6 @@ class ActivityReasonAggregator implements AggregatorInterface, ExportElementVali
 
     public function getLabels($key, array $values, $data)
     {
-        match ($data['level']) {
-            'reasons' => $this->activityReasonRepository->findBy(['id' => $values]),
-            'categories' => $this->activityReasonCategoryRepository->findBy(['id' => $values]),
-            default => throw new \RuntimeException(sprintf("The level data '%s' is invalid.", $data['level'])),
-        };
-
         return function ($value) use ($data) {
             if ('_header' === $value) {
                 return 'reasons' === $data['level'] ? 'Group by reasons' : 'Group by categories of reason';