clientv3: use "zap" logger in integration tests

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

clientv3/integration/logger_test.go

@@ -19,11 +19,9 @@ import (
 
 	"github.com/coreos/etcd/clientv3"
 
-	"github.com/coreos/pkg/capnslog"
 	"google.golang.org/grpc/grpclog"
 )
 
 func init() {
-	capnslog.SetGlobalLogLevel(capnslog.CRITICAL)
 	clientv3.SetLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard))
 }

clientv3/ordering/logger_test.go

@@ -19,11 +19,9 @@ import (
 
 	"github.com/coreos/etcd/clientv3"
 
-	"github.com/coreos/pkg/capnslog"
 	"google.golang.org/grpc/grpclog"
 )
 
 func init() {
-	capnslog.SetGlobalLogLevel(capnslog.CRITICAL)
 	clientv3.SetLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard))
 }