HDDS-1253. Fix checkstyle issue from Nightly run. Contributed by Xiaoyu Yao. (#593)

Closes PR #593

Author: xiaoyuyao

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/security/x509/certificate/authority/DefaultCAServer.java

@@ -246,8 +246,8 @@ public Future<X509CertificateHolder> requestCertificate(
     return xcertHolder;
   }
 
-  private X509CertificateHolder signAndStoreCertificate(LocalDate beginDate, LocalDate endDate,
-      PKCS10CertificationRequest csr) throws IOException,
+  private X509CertificateHolder signAndStoreCertificate(LocalDate beginDate,
+      LocalDate endDate, PKCS10CertificationRequest csr) throws IOException,
       OperatorCreationException, CertificateException {
     X509CertificateHolder xcert = approver.sign(config,
         getCAKeys().getPrivate(),

hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/protocol/ClientProtocol.java

@@ -20,7 +20,6 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import org.apache.hadoop.hdds.protocol.StorageType;
-import org.apache.hadoop.hdds.scm.ScmConfigKeys;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.ozone.OzoneAcl;
 import org.apache.hadoop.ozone.client.*;