async deleteUser(request) {
    const id = request.getId();
    const options = { refresh: request.getRefresh("wait_for") };

    await this.ask("core:security:user:delete", id, options);

    global.kuzzle.log.info(
      `[SECURITY] ${SecurityController.userOrSdk(
        request.getKuid(),
      )} applied action "${request.input.action}" on user "${id}."`,
    );

    return { _id: id };
  }
Deletes a user from Kuzzle

@param {Request} request
@returns {Promise<Object>}