Remove trailing whitespace in files

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=135386752

java/google/registry/dns/DnsQueue.java

@@ -54,7 +54,7 @@ public class DnsQueue {
   @Inject @Config("dnsWriteLockTimeout") Duration writeLockTimeout;
   @Inject @Named(DNS_PULL_QUEUE_NAME) Queue queue;
   @Inject DnsQueue() {}
-  
+
   long writeBatchSize = QueueConstants.maxLeaseCount();
 
   /**

java/google/registry/dns/ReadDnsQueueAction.java

@@ -98,7 +98,7 @@ public final class ReadDnsQueueAction implements Runnable {
           .result();
     }
   }
-  
+
   /** Leases all tasks from the pull queue and creates per-tld update actions for them. */
   @Override
   public void run() {

java/google/registry/dns/writer/dnsupdate/DnsUpdateWriter.java

@@ -134,7 +134,7 @@ public class DnsUpdateWriter implements DnsWriter {
       throw new RuntimeException("publishDomain failed: " + domainName, e);
     }
   }
-  
+
   @Override
   public void publishDomain(String domainName) {
     publishDomain(domainName, null);