remove config set on before install for travis build
remove config set on before install for travis build

cake-disposal-squad/dustjs,linkedin/dustjs,modulexcite/dustjs,sethkinast/dustjs,alihalabyah/dustjs,ellipticaljs/dustjs,tachyon1337/dustjs,nchlswtsn/dustjs,modulexcite/dustjs,erg0dic/dustjs,rphuber/dustjs,aredridel/dustjs,jimmyhchan/dustjs,jrrbru/dustjs,shakyShane/crossbow-lang,alihalabyah/dustjs,ellipticaljs/dustjs,catberry/catberry-dust,tachyon1337/dustjs,cake-disposal-squad/dustjs