Merge pull request #1593 from WordPress-Coding-Standards/feature/extra-minor-ruleset-cleanup

Extra: remove superfluous directive

Author: GaryJones

WordPress-Extra/ruleset.xml

@@ -76,9 +76,6 @@
 	<rule ref="Squiz.Scope.MemberVarScope"/>
 	<rule ref="Squiz.WhiteSpace.ScopeKeywordSpacing"/>
 	<rule ref="PSR2.Methods.MethodDeclaration"/>
-	<rule ref="PSR2.Methods.MethodDeclaration.Underscore">
-		<type>warning</type>
-	</rule>
 
 	<!-- Warn against using fully-qualified class names instead of the self keyword. -->
 	<rule ref="Squiz.Classes.SelfMemberReference.NotUsed">