add logger to options

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

sync/sync.go

@@ -3,7 +3,6 @@ package sync
 
 import (
 	"errors"
-	"time"
 )
 
 var (
@@ -33,21 +32,3 @@ type Leader interface {
 	// status returns when leadership is lost
 	Status() chan bool
 }
-
-type Options struct {
-	Nodes  []string
-	Prefix string
-}
-
-type Option func(o *Options)
-
-type LeaderOptions struct{}
-
-type LeaderOption func(o *LeaderOptions)
-
-type LockOptions struct {
-	TTL  time.Duration
-	Wait time.Duration
-}
-
-type LockOption func(o *LockOptions)