*: revert "internal/alarm" change

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

etcdserver/server.go

@@ -29,13 +29,13 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/coreos/etcd/alarm"
 	"github.com/coreos/etcd/compactor"
 	"github.com/coreos/etcd/etcdserver/api"
 	"github.com/coreos/etcd/etcdserver/api/v2http/httptypes"
 	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
 	"github.com/coreos/etcd/etcdserver/membership"
 	"github.com/coreos/etcd/etcdserver/stats"
-	"github.com/coreos/etcd/internal/alarm"
 	"github.com/coreos/etcd/internal/auth"
 	"github.com/coreos/etcd/internal/discovery"
 	"github.com/coreos/etcd/internal/lease"