Deletes the connection.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/directconnect/delete-connection.html
| aws directconnect delete-connection --connection-id dxcon-fg31dyv6 |
| delete-direct-connect-gateway — AWS CLI 1.16.6 Command Reference : http://docs.aws.amazon.com/cli/latest/reference/directconnect/delete-connection.html |