Remove testVersion from the ruleset, fix #66

Removed deprecated PHP version compatibility check.

Author: slaFFik

WPForms/ruleset.xml

@@ -14,9 +14,6 @@
 	<arg name="parallel" value="12"/>
 	<arg name="extensions" value="php"/>
 
-	<!-- Rules: Check PHP version compatibility -->
-	<config name="testVersion" value="7.2-"/>
-
 	<!-- Rules: Check PHP version compatibility. -->
 	<rule ref="PHPCompatibility">
 		<!-- Rules: WordPress polyfills. -->