You can delete VPN gateways that are no longer used.
Prerequisites
The associated VPN tunnels have been deleted. For detailed directions, see Deleting VPN Tunnel. Directions
2. Select VPN Connection > VPN Gateway on the left sidebar to access the VPN Gateway page.
3. Locate the VPN to be deleted, click Delete under the Operation column, and click Delete in the pop-up.
Note:
Note that all the associated connections will be immediately interrupted after the VPN gateway is deleted.