If a VPN gateway is no longer required, you can delete it to release network resources as long as it has no VPN connections configured.
If it has any connections configured, delete the connections first.
in the upper left corner and select the desired region and project.
in the upper left corner, select a region, and choose Network > Virtual Private Network.The VPN console is displayed.
If Enterprise Edition VPN is available for the selected region, choose Virtual Private Network > Classic.
If Enterprise Edition VPN is available for the selected region, locate the row that contains the target VPN gateway, and choose More > Delete.