Remove all sleeps from `kvs_endpoint_test.go`
Remove all sleeps from `kvs_endpoint_test.go`

lindenlab/consul,keyang512/consul,sequenceiq/consul,ffung/consul,dustinbrown/consul,wuub/consul,sequenceiq/consul,kingland/consul,marouenj/consul,marouenj/consul,faiq/consul,zeroae/consul,mckennajones/consul,zendesk/consul,keyang512/consul,ryotarai/consul,zendesk/consul,tomdionysus/consul,linearregression/consul,youhong316/consul,elemet/consul,kikitux/consul,guojianli/consul,kylemcc/consul,JioCloud/consul,anshprat/consul,anshprat/consul,elemet/consul,samaitra/consul,andygoalkeeper/consul,nicholascapo/consul,krmcbride/consul,StefanScherer/consul,mbrukman/consul,EasonYi/consul,sfncook/consul,StefanScherer/consul,zeroae/consul,mfischer-zd/consul,sweeneyb/consul,beni55/consul,youhong316/consul,curtiszimmerman/consul,marenzo/consul,jeffawang/consul,guojianli/consul,talwai/consul,half-dead/consul,rhyas/consul,dankraw/consul,42wim/consul,mfischer-zd/consul,Test-Betta-Inc/upgraded-engine,Thib17/consul,turbine/consul,youhong316/consul,mckennajones/consul,Eagle-X/consul,tamsky/consul,sean-/consul,dustinbrown/consul,pmalmgren/consul,owlin/consul,tshak/consul,webhost/consul,sequenceiq/consul,half-dead/consul,tomdionysus/consul,marclop/consul,bodepd/consul,linearregression/consul,tugbabodrumlu/consul,jeffawang/consul,hashicorp/consul,Test-Betta-Inc/upgraded-engine,tshak/consul,itnihao/consul,tomdionysus/consul,42wim/consul,kaskavalci/consul,sean-/consul,tshak/consul,Spantree/consul,tamsky/consul,dustinbrown/consul,elemet/consul,yonglehou/consul,AlphaStaxLLC/consul,faiq/consul,msn217/consul,Pivotal-Pierre-Delagrave/consul,itnihao/consul,beni55/consul,msn217/consul,turbine/consul,tamsky/consul,tempbottle/consul,EasonYi/consul,sroegner/consul,invenfantasy/consul,jovandeginste/consul,AlphaStaxLLC/consul,turbine/consul,nicholascapo/consul,wuub/consul,nicholascapo/consul,42wim/consul,nvoron23/consul,rhyas/consul,nvoron23/consul,Test-Betta-Inc/upgraded-engine,owlin/consul,tempbottle/consul,BWITS/consul,dankraw/consul,elcuervo/consul,i0rek/consul,owlin/consul,kylemcc/consul,Thib17/consul,yonglehou/consul,hashicorp/consul,tempbottle/consul,sequenceiq/consul,shaneog/consul,tshak/consul,elemet/consul,Spantree/consul,marclop/consul,StefanScherer/consul,DivyaVavili/consul,guojianli/consul,mckennajones/consul,leowmjw/consul,mbrukman/consul,BWITS/consul,yonglehou/consul,mshean/consul,JioCloud/consul,kylemcc/consul,ffung/consul,kikitux/consul,beni55/consul,yonglehou/consul,scalp42/consul,BWITS/consul,DivyaVavili/consul,mckennajones/consul,sean-/consul,sequenceiq/consul,calgaryscientific/consul,webhost/consul,krmcbride/consul,dankraw/consul,vamage/consul,krmcbride/consul,BWITS/consul,macb/consul,shaneog/consul,kingland/consul,zendesk/consul,mfischer-zd/consul,zeroae/consul,Pivotal-Pierre-Delagrave/consul,dankraw/consul,youhong316/consul,alouche/consul,sunadm/consul,zendesk/consul,leowmjw/consul,kikitux/consul,JioCloud/consul,bodepd/consul,samaitra/consul,nicholascapo/consul,talwai/consul,krmcbride/consul,guojianli/consul,rhyas/consul,marenzo/consul,sunadm/consul,sroegner/consul,elemet/consul,calgaryscientific/consul,owlin/consul,guojianli/consul,turbine/consul,jovandeginste/consul,dustinbrown/consul,half-dead/consul,AlphaStaxLLC/consul,Thib17/consul,talwai/consul,Eagle-X/consul,scalp42/consul,marclop/consul,soundcloud/consul,anshprat/consul,marenzo/consul,Pivotal-Pierre-Delagrave/consul,lindenlab/consul,shaneog/consul,i0rek/consul,pdf/consul,alouche/consul,ekristen/consul,curtiszimmerman/consul,calgaryscientific/consul,42wim/consul,elcuervo/consul,mshean/consul,alouche/consul,kylemcc/consul,tshak/consul,nvoron23/consul,leowmjw/consul,elcuervo/consul,nvoron23/consul,EasonYi/consul,marclop/consul,alouche/consul,soundcloud/consul,pmalmgren/consul,andygoalkeeper/consul,soundcloud/consul,hashicorp/consul,lindenlab/consul,macb/consul,tempbottle/consul,tempbottle/consul,i0rek/consul,BWITS/consul,linearregression/consul,scalp42/consul,marouenj/consul,pmalmgren/consul,i0rek/consul,zendesk/consul,leowmjw/consul,jeffawang/consul,shaneog/consul,kaskavalci/consul,sean-/consul,marenzo/consul,Pivotal-Pierre-Delagrave/consul,elcuervo/consul,mckennajones/consul,Pivotal-Pierre-Delagrave/consul,mfischer-zd/consul,beni55/consul,anshprat/consul,msn217/consul,Thib17/consul,ryotarai/consul,invenfantasy/consul,itnihao/consul,scalp42/consul,DivyaVavili/consul,itnihao/consul,mbrukman/consul,sean-/consul,bodepd/consul,kikitux/consul,sfncook/consul,kingland/consul,vamage/consul,Spantree/consul,jovandeginste/consul,Test-Betta-Inc/upgraded-engine,ffung/consul,linearregression/consul,leowmjw/consul,jovandeginste/consul,Eagle-X/consul,sunadm/consul,JioCloud/consul,kaskavalci/consul,tamsky/consul,anshprat/consul,talwai/consul,keyang512/consul,pmalmgren/consul,sfncook/consul,vamage/consul,Spantree/consul,tugbabodrumlu/consul,sroegner/consul,samaitra/consul,invenfantasy/consul,ekristen/consul,jovandeginste/consul,marouenj/consul,soundcloud/consul,jeffawang/consul,StefanScherer/consul,alouche/consul,sroegner/consul,kylemcc/consul,AlphaStaxLLC/consul,dustinbrown/consul,pdf/consul,kingland/consul,msn217/consul,marclop/consul,DivyaVavili/consul,Eagle-X/consul,EasonYi/consul,42wim/consul,invenfantasy/consul,mshean/consul,linearregression/consul,pdf/consul,mfischer-zd/consul,beni55/consul,JioCloud/consul,kikitux/consul,bodepd/consul,turbine/consul,curtiszimmerman/consul,sweeneyb/consul,faiq/consul,mshean/consul,rhyas/consul,tomdionysus/consul,andygoalkeeper/consul,ffung/consul,curtiszimmerman/consul,jeffawang/consul,ekristen/consul,faiq/consul,mfischer-zd/consul,webhost/consul,curtiszimmerman/consul,macb/consul,lindenlab/consul,Eagle-X/consul,sweeneyb/consul,rhyas/consul,Test-Betta-Inc/upgraded-engine,tamsky/consul,yonglehou/consul,elcuervo/consul,calgaryscientific/consul,calgaryscientific/consul,DivyaVavili/consul,webhost/consul,krmcbride/consul,samaitra/consul,ekristen/consul,dankraw/consul,wuub/consul,itnihao/consul,pdf/consul,tugbabodrumlu/consul,marenzo/consul,andygoalkeeper/consul,faiq/consul,vamage/consul,StefanScherer/consul,webhost/consul,msn217/consul,kingland/consul,Thib17/consul,wuub/consul,kaskavalci/consul,scalp42/consul,pmalmgren/consul,mbrukman/consul,sfncook/consul,keyang512/consul,sunadm/consul,invenfantasy/consul,shaneog/consul,macb/consul,mbrukman/consul,tomdionysus/consul,mshean/consul,i0rek/consul,sunadm/consul,AlphaStaxLLC/consul,tugbabodrumlu/consul,ryotarai/consul,kaskavalci/consul,ryotarai/consul,sfncook/consul,wuub/consul,sroegner/consul,ffung/consul,sweeneyb/consul,nvoron23/consul,youhong316/consul,EasonYi/consul,zeroae/consul,macb/consul,sweeneyb/consul,keyang512/consul,soundcloud/consul,owlin/consul,Spantree/consul,tugbabodrumlu/consul,half-dead/consul,bodepd/consul,ekristen/consul,hashicorp/consul,zeroae/consul,half-dead/consul,marouenj/consul,andygoalkeeper/consul,nvoron23/consul,lindenlab/consul,nicholascapo/consul,vamage/consul,pdf/consul,samaitra/consul,talwai/consul,ryotarai/consul