Remove unused waitSleepTime field in csiAttacher

pkg/volume/csi/csi_attacher.go

@@ -46,9 +46,8 @@ const (
 )
 
 type csiAttacher struct {
-	plugin        *csiPlugin
-	k8s           kubernetes.Interface
-	waitSleepTime time.Duration
+	plugin *csiPlugin
+	k8s    kubernetes.Interface
 
 	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

@@ -944,9 +944,8 @@ func (p *csiPlugin) newAttacherDetacher() (*csiAttacher, error) {
 	}
 
 	return &csiAttacher{
-		plugin:        p,
-		k8s:           k8s,
-		waitSleepTime: 1 * time.Second,
+		plugin: p,
+		k8s:    k8s,
 	}, nil
 }