fix(legend): remove legend.symbolSize and keepAspect
diff --git a/en/option/component/legend.md b/en/option/component/legend.md
index 91b1627..3cbe363 100644
--- a/en/option/component/legend.md
+++ b/en/option/component/legend.md
@@ -101,24 +101,6 @@
prefix = "#"
) }}
-## symbolSize(number|string) = 'auto'
-
-<ExampleUIControlNumber min="0" default="50" step="5" />
-
-Legend item symbol size. Valid values: `number | 'auto' | 'inherit'`.
-
-If it is `'auto'`, different series types may use different logic to decide symbol size. For example, a bar chart with a rounded rectangle as the legend symbol will take `itemWidth` and `itemHeight` as the size, while a line chart will use 80% of `itemHeight` as the graph height and overlay a horizontal line, but if user defined `icon`, then `itemHeight` is used as the height of the graph and no horizontal line is drawn. The exact logic depends on the internal implementation of the series.
-
-If it is `'inherit'`, it always takes the symbol size of the series.
-
-The symbol size is kept within `itemWidth` and `itemHeight` for these all cases.
-
-## symbolKeepAspect(boolean) = true
-
-<ExampleUIControlBoolean />
-
-Whether to keep aspect for icons (from `series.symbol` or user-defined `legend.data.icon`) in the form of `path://`.
-
## formatter(string|Function) = null
Formatter is used to format label of legend, which supports string template and callback function.
diff --git a/zh/option/component/legend.md b/zh/option/component/legend.md
index bfd8742..3e3487a 100644
--- a/zh/option/component/legend.md
+++ b/zh/option/component/legend.md
@@ -184,24 +184,6 @@
prefix = "#"
) }}
-## symbolSize(number|string) = 'auto'
-
-<ExampleUIControlNumber min="0" default="50" step="5" />
-
-图形大小，类型为 `number | 'auto' | 'inherit'`。
-
-如果为 `'auto'`，不同系列类型可能采用不同的大小逻辑，比如柱状图之类的采用圆角矩形作为图例的，会取 `itemWidth` 和 `itemHeight` 作为大小；而折线图会用 80% 的 `itemHeight` 作为图形高度并叠加一条横线，但如果用户自定义了 `icon`，则以 `itemHeight` 作为图形高度，不绘制横线。具体逻辑取决于系列内部实现。
-
-如果为 `'inherit'` 则表示：始终取系列的图形大小。
-
-无论取何值，最终会保证图形大小不超过 `itemWidth` 和 `itemHeight`。
-
-## symbolKeepAspect(boolean) = true
-
-<ExampleUIControlBoolean />
-
-如果图标（可能来自系列的 `symbol` 或用户自定义的 `legend.data.icon`）是 `path://` 的形式，是否在缩放时保持该图形的长宽比。
-
## formatter(string|Function) = null
用来格式化图例文本，支持字符串模板和回调函数两种形式。
