Remove unneeded namespace rule configuration

Author: schlessera

phpcs.xml.dist

@@ -40,17 +40,6 @@
 		 https://github.com/PHPCompatibility/PHPCompatibility#sniffing-your-code-for-compatibility-with-specific-php-versions -->
 	<config name="testVersion" value="5.4-"/>
 
-	<!-- Verify that everything in the global namespace is either namespaced or prefixed.
-		 See: https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/wiki/Customizable-sniff-properties#naming-conventions-prefix-everything-in-the-global-namespace -->
-	<rule ref="WordPress.NamingConventions.PrefixAllGlobals">
-		<properties>
-			<property name="prefixes" type="array" extend="true">
-				<element value="WP_CLI"/><!-- Namespaces. -->
-				<element value="wpcli"/><!-- Global variables and such. -->
-			</property>
-		</properties>
-	</rule>
-
 	<!--
 	#############################################################################
 	SELECTIVE EXCLUSIONS