src/base.js
function deleteBucketCors(params, callback) {
    submitRequest.call(this, {
        Action: 'name/cos:DeleteBucketCORS',
        method: 'DELETE',
        Bucket: params.Bucket,
        Region: params.Region,
        headers: params.Headers,
        action: 'cors',
    }, function (err, data) {
        if (err && err.statusCode === 204) {
            return callback(null, {statusCode: err.statusCode});
        } else if (err) {
            return callback(err);
        }
        callback(null, {
            statusCode: data.statusCode || err.statusCode,
            headers: data.headers,
        });
    });
}
function deleteBucketCors(params, callback) {
    submitRequest.call(this, {
        Action: 'name/cos:DeleteBucketCORS',
        method: 'DELETE',
        Bucket: params.Bucket,
        Region: params.Region,
        headers: params.Headers,
        action: 'cors',
    }, function (err, data) {
        if (err && err.statusCode === 204) {
            return callback(null, {statusCode: err.statusCode});
        } else if (err) {
            return callback(err);
        }
        callback(null, {
            statusCode: data.statusCode || err.statusCode,
            headers: data.headers,
        });
    });
}
删除 Bucket 的 跨域设置
@param  {Object}  params                 参数对象，必须
@param  {String}  params.Bucket      Bucket名称，必须
@param  {String}  params.Region      地域名称，必须
@param  {Function}  callback             回调函数，必须
@return  {Object}  err                   请求失败的错误，如果请求成功，则为空。https://cloud.tencent.com/document/product/436/7730
@return  {Object}  data                  返回的数据