delete some debug comments in stats_test.go
delete some debug comments in stats_test.go

elimisteve/etcd,axingblog/etcd,achanda/etcd,qqsun8819/etcd,Winslett/etcd,jmptrader/etcd,glevand/coreos--etcd,akauppi/etcd,yichengq/etcd,glycerine/etcd,raoofm/etcd,pengzj/etcd,gtank/etcd,mwitkow/etcd,lorneli/etcd,sofuture/etcd,cchamplin/etcd,dterei/etcd,chipironcin/etcd,polvi/etcd,TheHippo/etcd,vimalk78/etcd,nieanan/etcd,bakins/etcd,kkaneda/etcd,offscale/etcd,endocode/etcd,junxu/etcd,cvik/etcd,swingbach/etcd,improbable-io/etcd,spotify/etcd,cognusion/etcd,delkyd/etcd,gityf/etcd,linuxcer/etcd,sebrandon1/etcd,tamird/etcd,kingland/etcd,xiang90/etcd,jravetch/etcd,dannysauer/etcd,junxu/etcd,xebitstudios/etcd,fasaxc/etcd,barakmich/etcd,westhood/etcd,jefby/etcd,hzy001/etcd,glensc/etcd,chai2010/etcd,giantswarm/etcd,jeremyeder/etcd,jonboulle/etcd,heyitsanthony/etcd,mqliang/etcd,QuantiumTechnology/etcd,glensc/etcd,yifan-gu/etcd,xychu/etcd,rnaveiras/etcd,handsomesun/etcd,honeyqa/etcd,betawaffle/etcd,bspline/etcd,chai2010-playground/etcd,dnaeon/etcd,joshix/etcd,pengzj/etcd,rnaveiras/etcd,hongchaodeng/etcd,xebitstudios/etcd,youxidev/etcd,wantonsolutions/dinv-etcd,robszumski/etcd,arthurcolle/etcd,chipironcin/etcd,linuxcer/etcd,mickep76/etcd,achanda/etcd,etcd-io/etcd,mickep76/etcd,bakins/etcd,improbable-io/etcd,tamird/etcd,msanterre/etcd,raoofm/etcd,openedbox/etcd,YuleiXiao/etcd,yifan-gu/etcd,coreos/etcd,beni55/etcd,buaazp/etcd,njucslqq/etcd,pauldallen/etcd,jmptrader/etcd,yudai/etcd,imzhulei/etcd,zaphod-concur/etcd,Eagle-X/etcd,CrazyJvm/etcd,mwitkow-io/etcd,yudai/etcd,ajityagaty/etcd,sinsharat/etcd,ravigadde/etcd,oscarrr110/etcd,sayden/etcd,wfxiang08/etcd,shawnps/etcd,pigfoot/etcd,yyljlyy/etcd,spotify/etcd,Ulexus/etcd,fasaxc/etcd,njharman/etcd,ktateish/etcd,luxas/etcd,mkumatag/etcd,gyuho/etcd,sayden/etcd,purpleidea/etcd,tempbottle/etcd,steveeJ/etcd,Timer/etcd,shakefu/etcd,gtank/etcd,jlamillan/etcd,SivagnanamCiena/etcd,mwitkow/etcd,insionng/etcd,nekto0n/etcd,hongbinz/etcd,cockroachdb/etcd,jonboulle/etcd,buaazp/etcd,HideoYamauchi/etcd,lorneli/etcd,gityf/etcd,rchicoli/etcd,Yhgenomics/etcd,imzhulei/etcd,swingbach/etcd,hroyrh/etcd,hpcloud/etcd,mischief/etcd,shakefu/etcd,wowsoso/etcd,pauldallen/etcd,cvik/etcd,oscarrr110/etcd,combk8s/etcd,gae123/etcd,spacejam/etcd,honeyqa/etcd,chenbaihu/etcd,es-chow/etcd,onlyjob/etcd,gosharplite/etcd,spotify/etcd,lumjjb/etcd,mkumatag/etcd,olark/etcd,lzbgt/etcd,justintung/etcd,Ulexus/etcd,xueshanf/etcd,nieanan/etcd,dterei/etcd,mqliang/etcd,bluebreezecf/etcd,glycerine/etcd,iamqizhao/etcd,njharman/etcd,chai2010-playground/etcd,a-robinson/etcd,nekto0n/etcd,devfreesg/etcd,mitake/etcd,gouyang/etcd,plasticbox/etcd,es-chow/etcd,asim/etcd,elimisteve/etcd,OyTao/etcd_learning,zaphod-concur/etcd,robszumski/etcd,cvik/etcd,qiaochao911/etcd,freeloop1114/etcd,kkaneda/etcd,spacejam/etcd,mischief/etcd,whuwxl/etcd,mitake/etcd,snailwalker/etcd,bdarnell/etcd,Eagle-X/etcd,hongchaodeng/etcd,xdlinear/etcd,fgbreel/etcd,a-robinson/etcd,steveeJ/etcd,cognusion/etcd,insionng/etcd,beni55/etcd,devfreesg/etcd,snailwalker/etcd,armstrongli/etcd,gosharplite/etcd,etcd-io/etcd,westhood/etcd,StorReduce/etcd,gouyang/etcd,chai2010/etcd,njucslqq/etcd,jefby/etcd,Ulexus/etcd,glevand/coreos--etcd,TheHippo/etcd,xueshanf/etcd,cchamplin/etcd,hroyrh/etcd,jravetch/etcd,handsomesun/etcd,combk8s/etcd,onlyjob/etcd,tangkun75/etcd,armstrongli/etcd,sebrandon1/etcd,tempbottle/etcd,svdata/etcd,Ulexus/etcd,joshix/etcd,gyuho/etcd,QuantiumTechnology/etcd,mkumatag/etcd,crandles/etcd,dannysauer/etcd,betawaffle/etcd,csuideal/etcd,wantonsolutions/dinv-etcd,HideoYamauchi/etcd,ecnahc515/etcd,purpleidea/etcd,xdlinear/etcd,giantswarm/etcd,plasticbox/etcd,sebschrader/etcd,insequent/etcd,hzy001/etcd,mgoelzer/etcd-fork2,jlamillan/etcd,gae123/etcd,etcd-io/etcd,siddontang/etcd,jchauncey/etcd,rnaveiras/etcd,olark/etcd,ecnahc515/etcd,bspline/etcd,StorReduce/etcd,openedbox/etcd,mgoelzer/etcd-fork2,ravigadde/etcd,csuideal/etcd,fasaxc/etcd,tguangch/etcd,shafreeck/etcd,nkhare/etcd,Winslett/etcd,lumjjb/etcd,YuleiXiao/etcd,bluebreezecf/etcd,ylong/etcd,wowsoso/etcd,kingland/etcd,asim/etcd,akauppi/etcd,fanminshi/etcd,heyitsanthony/etcd,hongbinz/etcd,ajityagaty/etcd,youxidev/etcd,mike-lerch/etcd,crandles/etcd,xiang90/etcd,svdata/etcd,tangkun75/etcd,sinsharat/etcd,nkhare/etcd,spotify/etcd,yichengq/etcd,yyljlyy/etcd,shawnps/etcd,Timer/etcd,chenbaihu/etcd,CrazyJvm/etcd,mwitkow-io/etcd,bdarnell/etcd,insequent/etcd,fanminshi/etcd,mqliang/etcd,ktateish/etcd,lzbgt/etcd,coreos/etcd,dalanlan/etcd,delkyd/etcd,whuwxl/etcd,luxas/etcd,hpcloud/etcd,sofuture/etcd,princeqjzh/etcd,mike-lerch/etcd,vimalk78/etcd,msanterre/etcd,ajityagaty/etcd,qiaochao911/etcd,fgbreel/etcd,siddontang/etcd,OyTao/etcd_learning,dnaeon/etcd,cvik/etcd,shafreeck/etcd,li-ang/etcd,princeqjzh/etcd,justintung/etcd,rchicoli/etcd,freeloop1114/etcd,li-ang/etcd,jeremyeder/etcd,barakmich/etcd,qqsun8819/etcd,iamqizhao/etcd,sebschrader/etcd,tguangch/etcd,visheshnp/etcd,ylong/etcd,endocode/etcd,axingblog/etcd,visheshnp/etcd,jchauncey/etcd,wantonsolutions/dinv-etcd,wfxiang08/etcd,arthurcolle/etcd,dalanlan/etcd,cockroachdb/etcd,polvi/etcd,SivagnanamCiena/etcd,offscale/etcd,Yhgenomics/etcd,xychu/etcd