remove old instance ref

pool-server.go

@@ -13,9 +13,8 @@ import (
 )
 
 type PoolServer struct {
-	pod_name     string
-	pool         GrainPool
-	klarnaClient *KlarnaClient
+	pod_name string
+	pool     GrainPool
 }
 
 func NewPoolServer(pool GrainPool, pod_name string) *PoolServer {
@@ -219,7 +218,7 @@ func (s *PoolServer) HandleConfirmation(w http.ResponseWriter, r *http.Request,
 	if orderId == "" {
 		return fmt.Errorf("orderId is empty")
 	}
-	order, err := s.klarnaClient.GetOrder(orderId)
+	order, err := KlarnaInstance.GetOrder(orderId)
 
 	if err != nil {
 		return err