JavaScript Firebug Console Logging on Production

(function (win) {     var method;     var dummy = function() {};     var methods = ('assert,count,debug,dir,dirxml,error,exception,group,' +         'groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,' +         'time,timeEnd,trace,warn').split(',');     while (method = methods.pop()) {          win[method] = win[method] || dummy;     } })(window.console = window.console || {});