Make minimum version of WordPress be 4.6.

Author: GaryJones

phpcs.xml.dist

@@ -27,7 +27,7 @@
 	</rule>
 	<rule ref="WordPress.WP.DeprecatedFunctions">
 		<properties>
-			<property name="minimum_supported_version" value="3.0"/>
+			<property name="minimum_supported_version" value="4.6"/>
 		</properties>
 	</rule>
 	<rule ref="WordPress.WhiteSpace.ControlStructureSpacing">