YARN-7707-V2. Fix CheckStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml

@@ -5415,7 +5415,7 @@
     <name>yarn.federation.gpg.policy.generator.interval-ms</name>
     <value>1h</value>
   </property>
-  
+
   <property>
     <description>
       The number of retry for Register UAM.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/test/java/org/apache/hadoop/yarn/server/globalpolicygenerator/policygenerator/TestPolicyGenerator.java

@@ -29,7 +29,6 @@
 import org.apache.hadoop.yarn.server.federation.store.FederationStateStore;
 import org.apache.hadoop.yarn.server.federation.store.records.GetSubClusterPolicyConfigurationRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.GetSubClusterPolicyConfigurationResponse;
-import org.apache.hadoop.yarn.server.federation.store.records.GetSubClustersInfoRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.GetSubClustersInfoResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
 import org.apache.hadoop.yarn.server.federation.store.records.SubClusterInfo;