remove unused function param
remove unused function param

frank-weindel/when,frank-weindel/when,caporta/when,DJDNS/when.js,caporta/when,rwaldron/when.js,mlennon3/when,anthonyvia/when,icodeforlove/whenplus,SourcePointUSA/when,anthonyvia/when,ning-github/when,tkirda/when,stevage/when,stevage/when,ning-github/when,tkirda/when,petkaantonov/when,mlennon3/when,SourcePointUSA/when