Fix checkstyle issue with unused import

Introduced in https://github.com/elastic/elasticsearch/pull/49476

x-pack/plugin/ilm/src/test/java/org/elasticsearch/xpack/slm/SnapshotLifecycleServiceTests.java

@@ -16,7 +16,6 @@ import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.test.ClusterServiceUtils;
 import org.elasticsearch.test.ESTestCase;
-import org.elasticsearch.test.junit.annotations.TestIssueLogging;
 import org.elasticsearch.threadpool.TestThreadPool;
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.xpack.core.ilm.OperationMode;
@@ -99,9 +98,9 @@ public class SnapshotLifecycleServiceTests extends ESTestCase {
         try (ClusterService clusterService = ClusterServiceUtils.createClusterService(initialState, threadPool);
              SnapshotLifecycleService sls = new SnapshotLifecycleService(Settings.EMPTY,
                  () -> new FakeSnapshotTask(e -> logger.info("triggered")), clusterService, clock)) {
-    
+
             sls.offMaster();
-    
+
             SnapshotLifecyclePolicyMetadata newPolicy = SnapshotLifecyclePolicyMetadata.builder()
                 .setPolicy(createPolicy("foo", "*/1 * * * * ?"))
                 .setHeaders(Collections.emptyMap())
@@ -114,27 +113,27 @@ public class SnapshotLifecycleServiceTests extends ESTestCase {
                 createState(new SnapshotLifecycleMetadata(Collections.emptyMap(), OperationMode.RUNNING, new SnapshotLifecycleStats()));
             ClusterState state =
                 createState(new SnapshotLifecycleMetadata(policies, OperationMode.RUNNING, new SnapshotLifecycleStats()));
-    
+
             sls.clusterChanged(new ClusterChangedEvent("1", state, emptyState));
-    
+
             // Since the service does not think it is master, it should not be triggered or scheduled
             assertThat(sls.getScheduler().scheduledJobIds(), equalTo(Collections.emptySet()));
-    
+
             sls.onMaster();
             assertThat(sls.getScheduler().scheduledJobIds(), equalTo(Collections.singleton("initial-1")));
-    
+
             state = createState(new SnapshotLifecycleMetadata(policies, OperationMode.STOPPING, new SnapshotLifecycleStats()));
             sls.clusterChanged(new ClusterChangedEvent("2", state, emptyState));
-    
+
             // Since the service is stopping, jobs should have been cancelled
             assertThat(sls.getScheduler().scheduledJobIds(), equalTo(Collections.emptySet()));
-    
+
             state = createState(new SnapshotLifecycleMetadata(policies, OperationMode.STOPPED, new SnapshotLifecycleStats()));
             sls.clusterChanged(new ClusterChangedEvent("3", state, emptyState));
-    
+
             // Since the service is stopped, jobs should have been cancelled
             assertThat(sls.getScheduler().scheduledJobIds(), equalTo(Collections.emptySet()));
-    
+
             // No jobs should be scheduled when service is closed
             state = createState(new SnapshotLifecycleMetadata(policies, OperationMode.RUNNING, new SnapshotLifecycleStats()));
             sls.close();