Remove unused imports

netbox/vpn/models/l2vpn.py

@@ -1,7 +1,6 @@
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.core.exceptions import ValidationError
 from django.db import models
-from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _