Remove trailing whitespace in files

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

java/google/registry/model/domain/fee12/FeeCheckResponseExtensionItemCommandV12.java

@@ -62,7 +62,7 @@ public class FeeCheckResponseExtensionItemCommandV12 extends ImmutableObject {
    */
   @XmlElement(name = "class")
   String feeClass;
-  
+
   /** The effective date that the check is to be performed on (if specified in the query). */
   @XmlElement(name = "date")
   DateTime effectiveDate;