test: remove backup data from functional tests
test: remove backup data from functional tests

Signed-off-by: Gyuho Lee <3454051ee3341eb69bdf6fca40899cdad4d86496@gmail.com>

glevand/coreos--etcd,mkumatag/etcd,rnaveiras/etcd,sinsharat/etcd,li-ang/etcd,sinsharat/etcd,bdarnell/etcd,joshix/etcd,gyuho/etcd,etcd-io/etcd,ajityagaty/etcd,rnaveiras/etcd,vimalk78/etcd,fanminshi/etcd,bdarnell/etcd,mkumatag/etcd,dannysauer/etcd,etcd-io/etcd,ajityagaty/etcd,mqliang/etcd,li-ang/etcd,lorneli/etcd,xiang90/etcd,cockroachdb/etcd,lorneli/etcd,gyuho/etcd,etcd-io/etcd,cockroachdb/etcd,glevand/coreos--etcd,dannysauer/etcd,mkumatag/etcd,mqliang/etcd,ajityagaty/etcd,sebrandon1/etcd,fanminshi/etcd,mqliang/etcd,coreos/etcd,joshix/etcd,coreos/etcd,sebrandon1/etcd,rnaveiras/etcd,xiang90/etcd,vimalk78/etcd