async deleteSession(req, res) {
        if (req.body && typeof req.body === 'object' && req.body.all) {
            // Update transient_id to invalidate all sessions
            const member = await this.getMemberDataFromSession(req, res);
            if (member) {
                await this._cycleTransientId(member.id);
            }
        }
        this._removeSessionCookie(req, res);
    }
@method deleteSession
@param {Request} req
@param {Response} res

@returns {Promise<void>}