remove duplicate rule

Author: rbri

checkstyle.xml

@@ -264,7 +264,6 @@
             <property name="tokens" value="VARIABLE_DEF,PARAMETER_DEF"/>
             <property name="validateEnhancedForLoopVariable" value="true"/>
         </module>
-        <module name="HiddenField"/>
         <module name="MissingOverride"/>
     </module>
 </module>