Remove unused require rbconfig
Remove unused require rbconfig

Rbconfig is no longer used in the :deps task, so no longer required
eavgerinos/rack,akihiro17/rack,supzann3/rack,deepj/rack,jackxxu/rack,deepj/rack,wildjcrt/rack,supzann3/rack,gioele/rack,fabianrbz/rack,AMekss/rack,Codeman655/rack,AMekss/rack,Comcast/rack,jackxxu/rack,zjsxwc/rack,eins78/rack,eavgerinos/rack,wildjcrt/rack,eins78/rack,ganmacs/rack,rwz/rack,ganmacs/rack,gfvcastro/rack,trexnix/rack,tylergannon/rack,ganmacs/rack,chneukirchen/rack,gioele/rack,Eric-Guo/rack,wildjcrt/rack,tylergannon/rack,ngpestelos/rack,arronmabrey/rack,davidcelis/rack,imtayadeway/rack,davidcelis/rack,tylergannon/rack,nmk/rack,stepri/rack,shaneog/rack,jackxxu/rack,maclover7/rack,davidcelis/rack,ngpestelos/rack,deepj/rack,jeremyf/rack,nmk/rack,wjordan/rack,AMekss/rack,sigmavirus24/rack,krainboltgreene/lack,fabianrbz/rack,trexnix/rack,imtayadeway/rack,davydovanton/rack,akihiro17/rack,laplaceliu/rack,chneukirchen/rack,imtayadeway/rack,eavgerinos/rack,laplaceliu/rack,keithduncan/rack,shaneog/rack,supzann3/rack,arronmabrey/rack,liamseanbrady/rack,keithduncan/rack,zjsxwc/rack,jeremyf/rack,Comcast/rack,davydovanton/rack,keepcosmos/rack,maclover7/rack,sigmavirus24/rack,rwz/rack,fabianrbz/rack,eins78/rack,chneukirchen/rack,maclover7/rack,rwz/rack,liamseanbrady/rack,wjordan/rack,stepri/rack,trexnix/rack,gioele/rack,zjsxwc/rack,sigmavirus24/rack,keepcosmos/rack,gfvcastro/rack,Codeman655/rack,stepri/rack,nmk/rack,laplaceliu/rack,gfvcastro/rack,Eric-Guo/rack,shaneog/rack,ngpestelos/rack,liamseanbrady/rack,Comcast/rack,davydovanton/rack,keithduncan/rack,wjordan/rack,Eric-Guo/rack,akihiro17/rack,Codeman655/rack,keepcosmos/rack,jeremyf/rack,arronmabrey/rack