remove unwanted stuff

pkg/provider/gcp/secretmanager/secretsmanager_workload_identity_test.go

@@ -44,7 +44,6 @@ type workloadIdentityTest struct {
 	genAccessToken func(context.Context, *credentialspb.GenerateAccessTokenRequest, ...gax.CallOption) (*credentialspb.GenerateAccessTokenResponse, error)
 	genIDBindToken func(ctx context.Context, client *http.Client, k8sToken, idPool, idProvider string) (*oauth2.Token, error)
 	genSAToken     func(c context.Context, s1, s2, s3 string) (*authv1.TokenRequest, error)
-	genClusterID   func(context.Context, *esv1beta1.SecretStore) (*oauth2.Token, error)
 	store          esv1beta1.GenericStore
 	kubeObjects    []client.Object
 }
@@ -278,11 +277,6 @@ func defaultTestCase(name string) *workloadIdentityTest {
 				},
 			}, nil
 		},
-		genClusterID: func(context.Context, *esv1beta1.SecretStore) (*oauth2.Token, error) {
-			return &oauth2.Token{
-				AccessToken: defaultGenAccessToken,
-			}, nil
-		},
 		kubeObjects: []client.Object{
 			&v1.ServiceAccount{
 				ObjectMeta: metav1.ObjectMeta{