Remove unused waitSleepTime field in csiAttacher

pkg/volume/csi/csi_attacher.go

@@ -48,7 +48,6 @@ const (
 type csiAttacher struct {
 	plugin *csiPlugin
 	k8s    kubernetes.Interface
-	waitSleepTime time.Duration
 
 	csiClient csiClient
 }

pkg/volume/csi/csi_attacher_test.go

@@ -990,7 +990,6 @@ func TestAttacherDetach(t *testing.T) {
 				t.Errorf("test case %s failed: %v", tc.name, err)
 			}
 			watchError := tc.watcherError
-			csiAttacher.waitSleepTime = 100 * time.Millisecond
 			go func() {
 				if watchError {
 					errStatus := apierrors.NewInternalError(fmt.Errorf("we got an error")).Status()

pkg/volume/csi/csi_plugin.go

@@ -946,7 +946,6 @@ func (p *csiPlugin) newAttacherDetacher() (*csiAttacher, error) {
 	return &csiAttacher{
 		plugin: p,
 		k8s:    k8s,
-		waitSleepTime: 1 * time.Second,
 	}, nil
 }