checkstyle - remove unused imports
@@ -21,8 +21,6 @@ import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.Callable;
-import java.util.function.Predicate;
-import java.util.stream.Collectors;
import static org.assertj.core.api.Assertions.*;
import static org.mockito.ArgumentMatchers.any;
