diff --git a/pkg/scheduler/scheduler_test.go b/pkg/scheduler/scheduler_test.go
index 11cd3b8dcbaa..90c870c0df98 100644
--- a/pkg/scheduler/scheduler_test.go
+++ b/pkg/scheduler/scheduler_test.go
@@ -29,7 +29,6 @@ import (
 	"k8s.io/client-go/kubernetes/fake"
 	"k8s.io/client-go/tools/record"
 
-	clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
 	workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
 	karmadafake "github.com/karmada-io/karmada/pkg/generated/clientset/versioned/fake"
 	"github.com/karmada-io/karmada/pkg/util"
@@ -162,78 +161,6 @@ func TestCreateScheduler(t *testing.T) {
 		})
 	}
 }
-
-func TestReconcileEstimatorConnection(t *testing.T) {
-	dynamicClient := dynamicfake.NewSimpleDynamicClient(runtime.NewScheme())
-	karmadaClient := karmadafake.NewSimpleClientset()
-	kubeClient := fake.NewSimpleClientset()
-	scheduler, err := NewScheduler(dynamicClient, karmadaClient, kubeClient, WithEnableSchedulerEstimator(true))
-	if err != nil {
-		t.Fatalf("Failed to create scheduler: %v", err)
-	}
-
-	clusterName := "test-cluster"
-	cluster := &clusterv1alpha1.Cluster{
-		ObjectMeta: metav1.ObjectMeta{Name: clusterName},
-		Spec:       clusterv1alpha1.ClusterSpec{SyncMode: clusterv1alpha1.Pull},
-	}
-	_, err = karmadaClient.ClusterV1alpha1().Clusters().Create(context.TODO(), cluster, metav1.CreateOptions{})
-	if err != nil {
-		t.Fatalf("Failed to create cluster: %v", err)
-	}
-
-	tests := []struct {
-		name                                string
-		key                                 util.QueueKey
-		disableSchedulerEstimatorInPullMode bool
-		expectedError                       bool
-		expectEstablishConnection           bool
-	}{
-		{
-			name:          "Invalid key",
-			key:           123,
-			expectedError: true,
-		},
-		{
-			name:          "Cluster not found",
-			key:           "non-existent-cluster",
-			expectedError: false,
-		},
-		{
-			name:                                "Cluster in pull mode, estimator disabled",
-			key:                                 clusterName,
-			disableSchedulerEstimatorInPullMode: true,
-			expectedError:                       false,
-			expectEstablishConnection:           false,
-		},
-		{
-			name:                                "Cluster in pull mode, estimator enabled",
-			key:                                 clusterName,
-			disableSchedulerEstimatorInPullMode: false,
-			expectedError:                       false,
-			expectEstablishConnection:           true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			scheduler.disableSchedulerEstimatorInPullMode = tt.disableSchedulerEstimatorInPullMode
-
-			err := scheduler.reconcileEstimatorConnection(tt.key)
-			if (err != nil) != tt.expectedError {
-				t.Errorf("reconcileEstimatorConnection() error = %v, expectedError %v", err, tt.expectedError)
-			}
-
-			// We can't directly assert whether EstablishConnection is called.
-			// Instead, we'll check for conditions around its invocation.
-			// If EstablishConnection should be called, the error should be nil, and no early returns should have occurred.
-			if tt.expectEstablishConnection && err != nil {
-				t.Errorf("Expected EstablishConnection to be called, but got error: %v", err)
-			}
-		})
-	}
-}
-
 func Test_patchBindingStatusCondition(t *testing.T) {
 	oneHourBefore := time.Now().Add(-1 * time.Hour).Round(time.Second)
 	oneHourAfter := time.Now().Add(1 * time.Hour).Round(time.Second)