Removing unnecessary references
diff --git a/openstack/networking/v2/extensions/external/requests.go b/openstack/networking/v2/extensions/external/requests.go
index 0d20bb1..a29c2fa 100644
--- a/openstack/networking/v2/extensions/external/requests.go
+++ b/openstack/networking/v2/extensions/external/requests.go
@@ -2,6 +2,18 @@
 
 import "github.com/rackspace/gophercloud/openstack/networking/v2/networks"
 
+type AdminState *bool
+
+// Convenience vars for AdminStateUp values.
+var (
+	iTrue  = true
+	iFalse = false
+
+	Nothing AdminState = nil
+	Up      AdminState = &iTrue
+	Down    AdminState = &iFalse
+)
+
 type CreateOpts struct {
 	Parent   networks.CreateOpts
 	External bool