Remove unused apierrors import

Remove k8s.io/apimachinery/pkg/api/errors import that is no longer
needed after refactoring to use discovery API for baremetal detection.

Co-Authored-By: Rohit Patil <ropatil@redhat.com>

Author: Rohit Patil

test/extended/machines/scale.go

@@ -14,7 +14,6 @@ import (
 	bmhelper "github.com/openshift/origin/test/extended/baremetal"
 	"github.com/stretchr/objx"
 	corev1 "k8s.io/api/core/v1"
-	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime/schema"