Remove trailing whitespace in files

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

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() {