Remove custom validate_unique() methods

netbox/virtualization/migrations/0033_unique_constraints.py

@@ -0,0 +1,25 @@
+# Generated by Django 4.1.1 on 2022-09-14 20:57
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('virtualization', '0032_virtualmachine_update_sites'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='virtualmachine',
+            unique_together=set(),
+        ),
+        migrations.AddConstraint(
+            model_name='virtualmachine',
+            constraint=models.UniqueConstraint(fields=('name', 'cluster', 'tenant'), name='virtualization_virtualmachine_unique_name_cluster_tenant'),
+        ),
+        migrations.AddConstraint(
+            model_name='virtualmachine',
+            constraint=models.UniqueConstraint(condition=models.Q(('tenant__isnull', True)), fields=('name', 'cluster'), name='virtualization_virtualmachine_unique_name_cluster', violation_error_message='Virtual machine name must be unique per site.'),
+        ),
+    ]