client/lxd_containers.go
func (r *ProtocolLXD) DeleteContainerBackup(containerName string, name string) (Operation, error) {
	if !r.HasExtension("container_backup") {
		return nil, fmt.Errorf("The server is missing the required \"container_backup\" API extension")
	}

	// Send the request
	op, _, err := r.queryOperation("DELETE", fmt.Sprintf("/containers/%s/backups/%s",
		url.QueryEscape(containerName), url.QueryEscape(name)), nil, "")
	if err != nil {
		return nil, err
	}

	return op, nil
}
func (r *ProtocolLXD) DeleteContainerBackup(containerName string, name string) (Operation, error) {
	if !r.HasExtension("container_backup") {
		return nil, fmt.Errorf("The server is missing the required \"container_backup\" API extension")
	}

	// Send the request
	op, _, err := r.queryOperation("DELETE", fmt.Sprintf("/containers/%s/backups/%s",
		url.QueryEscape(containerName), url.QueryEscape(name)), nil, "")
	if err != nil {
		return nil, err
	}

	return op, nil
}
// DeleteContainerBackup requests that LXD deletes the container backup