remove spurious callback

auth/callbacks.go

@@ -3,11 +3,8 @@ package auth
 import (
 	"gitlab.com/xx_network/primitives/id"
 	"sync"
-	jww "github.com/spf13/jwalterweatherman"
 )
 
-
-
 type callbackMap struct {
 	generalCallback  []interface{}
 	specificCallback map[id.ID]interface{}