Remove code that is no more necessary for validating .strobe selector cheat

[piradata]

checkResults functions already prevents cheating with ".strobe" selector by comparing $(".table").html() == ruleTable.html() because ruleTable.find(rule).addClass("strobe"); will never find anything if dependent on the .strobe class because ruleTable.find(".strobe").removeClass("strobe"); already removes the class right before :)