Remove access systems management link for Alta

Removed the link to managing access systems from the features list.

Author: razor-x

docs/device-guides/avigilon-alta-access-system.md

@@ -25,7 +25,6 @@ For detailed information about the Avigilon Alta-connected devices that Seam sup
 We support the following features:
 
 * [Triggering web lock and unlock actions](../products/smart-locks/lock-and-unlock.md)
-* [Managing access systems](../products/access-systems/)
 
 ***