fixup! 🔒️(back) restrict accesss to document accesses

Author: lunika

src/backend/core/api/viewsets.py

@@ -1454,10 +1454,6 @@ class DocumentAccessViewSet(
     serializer_class = serializers.DocumentAccessSerializer
     is_current_user_owner_or_admin = False
 
-    def dispatch(self, request, *args, **kwargs):
-        self.is_current_user_owner_or_admin = False
-        return super().dispatch(request, *args, **kwargs)
-
     def get_queryset(self):
         """Return the queryset according to the action."""
         queryset = super().get_queryset()