Tidy up an unused logger

Author: joegallo

x-pack/plugin/migrate/src/main/java/org/elasticsearch/xpack/migrate/action/CopyLifecycleIndexMetadataTransportAction.java

@@ -7,8 +7,6 @@
 
 package org.elasticsearch.xpack.migrate.action;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.action.support.ActionFilters;
 import org.elasticsearch.action.support.master.AcknowledgedResponse;
@@ -41,7 +39,6 @@
 public class CopyLifecycleIndexMetadataTransportAction extends TransportMasterNodeAction<
     CopyLifecycleIndexMetadataAction.Request,
     AcknowledgedResponse> {
-    private static final Logger logger = LogManager.getLogger(CopyLifecycleIndexMetadataTransportAction.class);
     private final ClusterStateTaskExecutor<UpdateIndexMetadataTask> executor;
     private final MasterServiceTaskQueue<UpdateIndexMetadataTask> taskQueue;