update

src/main/java/io/ib67/sfcraft/BackupWorker.java

@@ -12,7 +12,6 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
-import java.util.concurrent.Callable;
 import java.util.function.Supplier;
 
 import static io.ib67.sfcraft.JustBackupMod.PERFORMING_BACKUP;