Disable PhantomJS

phantomjs_patch.config

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:role="http://www.sitecore.net/xmlconfig/role/">
	<sitecore role:require="ContentDelivery or Reporting or Processing">
        <settings>
            <setting name="ContentTesting.AutomaticContentTesting.Enabled" value="false" />
            <setting name="ContentTesting.AlwaysShowTestCandidateNotification" value="false" />
        </settings>
	    <pipelines>
            <renderingRuleEvaluated>
                <processor type="Sitecore.ContentTesting.Pipelines.RenderingRuleEvaluated.TestingRule, Sitecore.ContentTesting">
                    <patch:delete />
                </processor>
            </renderingRuleEvaluated>
	        <getScreenShotForURL>
	            <patch:delete />
	        </getScreenShotForURL>
	    </pipelines>
	</sitecore>
</configuration>