chore: remove unused import

Author: YutaLin

hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOmSnapshot.java

@@ -139,7 +139,6 @@
 import org.apache.hadoop.ozone.om.helpers.KeyInfoWithVolumeContext;
 import org.apache.hadoop.ozone.om.helpers.OmKeyArgs;
 import org.apache.hadoop.ozone.om.helpers.OmMultipartInfo;
-import org.apache.hadoop.ozone.om.helpers.OmMultipartUploadCompleteInfo;
 import org.apache.hadoop.ozone.om.helpers.OzoneFileStatus;
 import org.apache.hadoop.ozone.om.helpers.SnapshotInfo;
 import org.apache.hadoop.ozone.om.protocol.OzoneManagerProtocol;