YARN-6881. LOG is unused in AllocationConfiguration (Contributed by weiyuan via Daniel Templeton)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationConfiguration.java

@@ -23,8 +23,6 @@ import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.authorize.AccessControlList;
 import org.apache.hadoop.yarn.api.records.QueueACL;
@@ -41,7 +39,6 @@ import org.apache.hadoop.yarn.util.resource.Resources;
 import com.google.common.annotations.VisibleForTesting;
 
 public class AllocationConfiguration extends ReservationSchedulerConfiguration {
-  private static final Log LOG = LogFactory.getLog(FSQueue.class.getName());
   private static final AccessControlList EVERYBODY_ACL = new AccessControlList("*");
   private static final AccessControlList NOBODY_ACL = new AccessControlList(" ");
   private static final ResourceCalculator RESOURCE_CALCULATOR =