etcd-runner: remove unused code and change name for randClient
etcd-runner: remove unused code and change name for randClient

plasticbox/etcd,li-ang/etcd,mkumatag/etcd,lumjjb/etcd,ajityagaty/etcd,etcd-io/etcd,yudai/etcd,sinsharat/etcd,plasticbox/etcd,ajityagaty/etcd,gyuho/etcd,ravigadde/etcd,sinsharat/etcd,hongchaodeng/etcd,etcd-io/etcd,qqsun8819/etcd,lorneli/etcd,mqliang/etcd,akauppi/etcd,fanminshi/etcd,handsomesun/etcd,gyuho/etcd,ravigadde/etcd,joshix/etcd,whuwxl/etcd,rnaveiras/etcd,glevand/coreos--etcd,jlamillan/etcd,bluebreezecf/etcd,rchicoli/etcd,akauppi/etcd,jlamillan/etcd,handsomesun/etcd,dannysauer/etcd,xiang90/etcd,vimalk78/etcd,sebrandon1/etcd,tguangch/etcd,heyitsanthony/etcd,armstrongli/etcd,vimalk78/etcd,bluebreezecf/etcd,lumjjb/etcd,rnaveiras/etcd,qqsun8819/etcd,etcd-io/etcd,mickep76/etcd,bdarnell/etcd,CrazyJvm/etcd,li-ang/etcd,ajityagaty/etcd,mqliang/etcd,insequent/etcd,joshix/etcd,CrazyJvm/etcd,rchicoli/etcd,insequent/etcd,OyTao/etcd_learning,armstrongli/etcd,YuleiXiao/etcd,whuwxl/etcd,hongchaodeng/etcd,dannysauer/etcd,endocode/etcd,cockroachdb/etcd,yudai/etcd,YuleiXiao/etcd,sebrandon1/etcd,heyitsanthony/etcd,mickep76/etcd,mkumatag/etcd,tguangch/etcd,mkumatag/etcd,rnaveiras/etcd,mqliang/etcd,lorneli/etcd,cockroachdb/etcd,endocode/etcd,coreos/etcd,xiang90/etcd,coreos/etcd,bdarnell/etcd,fanminshi/etcd,visheshnp/etcd,OyTao/etcd_learning,glevand/coreos--etcd,visheshnp/etcd,a-robinson/etcd,a-robinson/etcd