doc: remove old usage instruction

components/form/index.en-US.md

@@ -182,10 +182,7 @@ More option at [rc-form option](https://github.com/react-component/form#option-o
 
 ### Form.Item
 
-Note:
-
-- If Form.Item has multiple children that had been decorated by `getFieldDecorator`, `help` and `required` and `validateStatus` can't be generated automatically.
-- Before `2.2.0`, form controls must be child of Form.Item, otherwise, you need to set `help`, `required` and `validateStatus` by yourself.
+Note: if Form.Item has multiple children that had been decorated by `getFieldDecorator`, `help` and `required` and `validateStatus` can't be generated automatically.
 
 | Property | Description | Type | Default Value |
 | -------- | ----------- | ---- | ------------- |

components/form/index.zh-CN.md

@@ -183,10 +183,7 @@ validateFields(['field1', 'field2'], options, (errors, values) => {
 
 ### Form.Item
 
-注意：
-
-- 一个 Form.Item 建议只放一个被 getFieldDecorator 装饰过的 child，当有多个被装饰过的 child 时，`help` `required` `validateStatus` 无法自动生成。
-- `2.2.0` 之前，只有当表单域为 Form.Item 的子元素时，才会自动生成 `help` `required` `validateStatus`，嵌套情况需要自行设置。
+注意：一个 Form.Item 建议只放一个被 getFieldDecorator 装饰过的 child，当有多个被装饰过的 child 时，`help` `required` `validateStatus` 无法自动生成。
 
 | 参数 | 说明 | 类型 | 默认值 |
 | --- | --- | --- | --- |

components/tooltip/index.en-US.md

@@ -26,7 +26,7 @@ The following APIs are shared by Tooltip, Popconfirm, Popover.
 | arrowPointAtCenter | Whether the arrow is pointed at the center of target, supported after `antd@1.11+` | boolean | `false` |
 | autoAdjustOverflow | Whether to adjust popup placement automatically when popup is off screen | boolean | `true` |
 | defaultVisible | Whether the floating tooltip card is visible by default | boolean | `false` |
-| getPopupContainer | The DOM container of the tip, the default behavior is to create a `div` element in `body`. Use `getTooltipContainer` if you are using `antd@<2.5.2` | Function(triggerNode) | () => document.body |
+| getPopupContainer | The DOM container of the tip, the default behavior is to create a `div` element in `body` | Function(triggerNode) | () => document.body |
 | mouseEnterDelay | Delay in seconds, before tooltip is shown on mouse enter | number | 0 |
 | mouseLeaveDelay | Delay in seconds, before tooltip is hidden on mouse leave | number | 0.1 |
 | overlayClassName | Class name of the tooltip card | string | - |

components/tooltip/index.zh-CN.md

@@ -28,7 +28,7 @@ title: Tooltip
 | arrowPointAtCenter | 箭头是否指向目标元素中心，`antd@1.11+` 支持 | boolean | `false` |
 | autoAdjustOverflow | 气泡被遮挡时自动调整位置 | boolean | `true` |
 | defaultVisible | 默认是否显隐 | boolean | false |
-| getPopupContainer | 浮层渲染父节点，默认渲染到 body 上。`2.5.2` 之前请使用 `getTooltipContainer` | Function(triggerNode) | () => document.body |
+| getPopupContainer | 浮层渲染父节点，默认渲染到 body 上 | Function(triggerNode) | () => document.body |
 | mouseEnterDelay | 鼠标移入后延时多少才显示 Tooltip，单位：秒 | number | 0 |
 | mouseLeaveDelay | 鼠标移出后延时多少才隐藏 Tooltip，单位：秒 | number | 0.1 |
 | overlayClassName | 卡片类名 | string | 无 |

components/upload/index.en-US.md

@@ -66,8 +66,6 @@ When uploading state change, it returns:
    }
    ```
 
-   > Before `antd@1.9.0`, this parameter will be Array Object `[file, ...]` in multiple mode, while in `antd@1.9.0+`, it will always be an Object.
-
 2. `fileList` current list of files
 3. `event` response from server, including uploading progress, supported by advanced browsers.
 

components/upload/index.zh-CN.md

@@ -67,8 +67,6 @@ title: Upload
    }
    ```
 
-   > `antd@1.9.0` 之前，multiple 模式下，此参数为一个对象数组 `[file, ...]`，`antd@1.9.0` 开始无论是否多选，均为一个对象。
-
 2. `fileList` 当前的文件列表。
 3. `event` 上传中的服务端响应内容，包含了上传进度等信息，高级浏览器支持。