Ozg 7262 attarchments not null

archive-manager-server/src/main/java/de/ozgcloud/archive/export/ExportGrpcService.java

@@ -44,8 +44,6 @@ import net.devh.boot.grpc.server.service.GrpcService;
 @RequiredArgsConstructor
 class ExportGrpcService extends ExportServiceImplBase {
 
-	static final int CHUNK_SIZE = 256 * 1024;
-
 	private final ExportService exportService;
 	private final TaskExecutor taskExecutor;