chore: remove dead disruptable code (#1751)

pkg/controllers/state/statenode.go

@@ -28,7 +28,6 @@ import (
 	"k8s.io/apimachinery/pkg/api/equality"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/utils/clock"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 
 	v1 "sigs.k8s.io/karpenter/pkg/apis/v1"
@@ -89,20 +88,6 @@ func (n StateNodes) Pods(ctx context.Context, kubeClient client.Client) ([]*core
 	return pods, nil
 }
 
-// Disruptable filters StateNodes that are meet the IsDisruptable condition
-func (n StateNodes) Disruptable(ctx context.Context, clk clock.Clock, kubeClient client.Client) (StateNodes, error) {
-	pdbs, err := pdb.NewLimits(ctx, clk, kubeClient)
-	if err != nil {
-		return StateNodes{}, fmt.Errorf("constructing pdbs, %w", err)
-	}
-	n = lo.Filter(n, func(node *StateNode, _ int) bool {
-		nodeDisruptibleErr := node.ValidateNodeDisruptable(ctx, kubeClient)
-		_, podDisruptibleErr := node.ValidatePodsDisruptable(ctx, kubeClient, pdbs)
-		return nodeDisruptibleErr == nil && podDisruptibleErr == nil
-	})
-	return n, nil
-}
-
 func (n StateNodes) ReschedulablePods(ctx context.Context, kubeClient client.Client) ([]*corev1.Pod, error) {
 	var pods []*corev1.Pod
 	for _, node := range n {