remove extra var

Author: pakelley

label_studio/data_export/mixins.py

@@ -151,7 +151,7 @@ def _get_export_serializer_option(serialization_options):
     def get_task_queryset(self, ids, annotation_filter_options):
         annotations_qs = self._get_filtered_annotations_queryset(annotation_filter_options=annotation_filter_options)
 
-        task_queryset = (
+        return (
             Task.objects.filter(id__in=ids)
             .select_related('file_upload')  # select_related more efficient for regular foreign-key relationship
             .prefetch_related(
@@ -162,8 +162,6 @@ def get_task_queryset(self, ids, annotation_filter_options):
             )
         )
 
-        return task_queryset
-
     def get_export_data(self, task_filter_options=None, annotation_filter_options=None, serialization_options=None):
         """
         serialization_options: None or Dict({