etcdctl: remove 0.4 peer syncing
etcdctl: remove 0.4 peer syncing

visheshnp/etcd,bluebreezecf/etcd,OyTao/etcd_learning,endocode/etcd,vimalk78/etcd,glycerine/etcd,mqliang/etcd,linuxcer/etcd,lumjjb/etcd,sebrandon1/etcd,mqliang/etcd,vimalk78/etcd,a-robinson/etcd,lorneli/etcd,linuxcer/etcd,glevand/coreos--etcd,yudai/etcd,akauppi/etcd,heyitsanthony/etcd,ajityagaty/etcd,hongchaodeng/etcd,insequent/etcd,etcd-io/etcd,purpleidea/etcd,mqliang/etcd,xiang90/etcd,zaphod-concur/etcd,akauppi/etcd,nekto0n/etcd,armstrongli/etcd,ravigadde/etcd,gyuho/etcd,rnaveiras/etcd,li-ang/etcd,CrazyJvm/etcd,visheshnp/etcd,sinsharat/etcd,ktateish/etcd,mickep76/etcd,armstrongli/etcd,dannysauer/etcd,xiang90/etcd,sebrandon1/etcd,swingbach/etcd,ajityagaty/etcd,YuleiXiao/etcd,etcd-io/etcd,hongchaodeng/etcd,bdarnell/etcd,sinsharat/etcd,ktateish/etcd,glycerine/etcd,YuleiXiao/etcd,joshix/etcd,etcd-io/etcd,mkumatag/etcd,bluebreezecf/etcd,rchicoli/etcd,fanminshi/etcd,jonboulle/etcd,qqsun8819/etcd,glevand/coreos--etcd,CrazyJvm/etcd,joshix/etcd,dannysauer/etcd,mkumatag/etcd,handsomesun/etcd,tguangch/etcd,luxas/etcd,whuwxl/etcd,yudai/etcd,fanminshi/etcd,swingbach/etcd,purpleidea/etcd,nekto0n/etcd,plasticbox/etcd,heyitsanthony/etcd,OyTao/etcd_learning,a-robinson/etcd,bdarnell/etcd,mickep76/etcd,rchicoli/etcd,cockroachdb/etcd,lumjjb/etcd,jonboulle/etcd,coreos/etcd,zaphod-concur/etcd,qqsun8819/etcd,coreos/etcd,handsomesun/etcd,whuwxl/etcd,tguangch/etcd,lorneli/etcd,gyuho/etcd,endocode/etcd,ajityagaty/etcd,rnaveiras/etcd,li-ang/etcd,jlamillan/etcd,insequent/etcd,cockroachdb/etcd,mkumatag/etcd,rnaveiras/etcd,luxas/etcd,jlamillan/etcd,ravigadde/etcd,plasticbox/etcd