feat: support http->http in gateway (#4605)

rest/httpc/internal/metricsinterceptor_test.go

@@ -6,15 +6,11 @@ import (
 	"testing"
 	"time"
 
-	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
 	"github.com/zeromicro/go-zero/core/logx"
 )
 
 func TestMetricsInterceptor(t *testing.T) {
-	c := gomock.NewController(t)
-	defer c.Finish()
-
 	logx.Disable()
 
 	svr := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

rest/httpc/requests.go

@@ -183,7 +183,6 @@ func request(r *http.Request, cli client) (*http.Response, error) {
 	for i := len(respHandlers) - 1; i >= 0; i-- {
 		respHandlers[i](resp, err)
 	}
-
 	if err != nil {
 		span.RecordError(err)
 		span.SetStatus(codes.Error, err.Error())