deleteNetworkFirewallTransitGatewayAttachment
inline suspend fun NetworkFirewallClient.deleteNetworkFirewallTransitGatewayAttachment(crossinline block: DeleteNetworkFirewallTransitGatewayAttachmentRequest.Builder.() -> Unit): DeleteNetworkFirewallTransitGatewayAttachmentResponse
Deletes a transit gateway attachment from a Network Firewall. Either the firewall owner or the transit gateway owner can delete the attachment.
After you delete a transit gateway attachment, raffic will no longer flow through the firewall endpoints.
After you initiate the delete operation, use DescribeFirewall to monitor the deletion status.