no lint unused variables

Kubernetes-commit: 0019f986130fdd8ca17c6e5511b15168d9181b1e

rest/request_test.go

@@ -1436,25 +1436,35 @@ func TestRequestStream(t *testing.T) {
 	}
 }
 
+//nolint:unused
 type fakeUpgradeConnection struct{}
 
+//nolint:unused
 func (c *fakeUpgradeConnection) CreateStream(headers http.Header) (httpstream.Stream, error) {
 	return nil, nil
 }
+
+//nolint:unused
 func (c *fakeUpgradeConnection) Close() error {
 	return nil
 }
+
+//nolint:unused
 func (c *fakeUpgradeConnection) CloseChan() <-chan bool {
 	return make(chan bool)
 }
+
+//nolint:unused
 func (c *fakeUpgradeConnection) SetIdleTimeout(timeout time.Duration) {
 }
 
+//nolint:unused
 type fakeUpgradeRoundTripper struct {
 	req  *http.Request
 	conn httpstream.Connection
 }
 
+//nolint:unused
 func (f *fakeUpgradeRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
 	f.req = req
 	b := []byte{}
@@ -1466,6 +1476,7 @@ func (f *fakeUpgradeRoundTripper) RoundTrip(req *http.Request) (*http.Response,
 	return resp, nil
 }
 
+//nolint:unused
 func (f *fakeUpgradeRoundTripper) NewConnection(resp *http.Response) (httpstream.Connection, error) {
 	return f.conn, nil
 }