Revert "docs(demo): 补充组合图表 demo & 增加一个插件图表 (#2448)"

This reverts commit 772155d.

Author: visiky

docs/manual/plots/pie.en.md

@@ -140,7 +140,7 @@ With G2Plot, you can set the `innerRadius` to create concentric ring.
 
 ### Fan chart
 
-By setting startAngle` and endAngle, we can turn a pie plot into a fan chart.
+By setting `startAngle` and `endAngle`，we can turn a pie plot into a fan chart.
 
 <playground path='pie/basic/demo/quarter-circle.ts' rid='rect3'></playground>
 

docs/manual/plots/pie.zh.md

@@ -141,7 +141,7 @@ piePlot.render();
 
 ### 扇形图
 
-通过设置饼图的 startAngle (开始角度) 和 endAngle (结束角度)，我们可以将饼图变成扇形图
+通过设置饼图的 `startAngle` (开始角度) 和 `endAngle` (结束角度)，我们可以将饼图变成扇形图
 
 <playground path='pie/basic/demo/quarter-circle.ts' rid='rect3'></playground>
 

docs/manual/plugin.en.md

@@ -59,7 +59,6 @@ The main process is divided into the following steps:
 | [G2Plot-QRCode](https://github.com/hustcc/G2Plot-QRCode)         | [Go](https://git.hust.cc/G2Plot-QRCode)             | Draw a QRCode with G2Plot.    | [![npm](https://img.shields.io/npm/v/g2plot-qrcode.svg)](https://www.npmjs.com/package/g2plot-qrcode)     |
 | [G2Plot-Column](https://github.com/yujs/G2Plot-Column)           | [Go](https://yujs.github.io/G2Plot-Column/)         | Customize Column with G2Plot. | [![npm](https://img.shields.io/npm/v/g2plot-column.svg)](https://www.npmjs.com/package/g2plot-column)     |
 | [G2Plot-Lollipop](https://github.com/MrSmallLiu/G2Plot-Lollipop) | [Go](https://mrsmallliu.github.io/G2Plot-Lollipop/) | Welcome to G2Plot-Lollipop 👋 | [![npm](https://img.shields.io/npm/v/g2plot-lollipop.svg)](https://www.npmjs.com/package/g2plot-lollipop) |
-| [G2Plot-Calendar](https://github.com/visiky/G2Plot-Calendar) | [Go](https://visiky.github.io/g2plot-calendar/) | A component like GitHub-contribution-calendar with G2Plot 📅 | [![npm](https://img.shields.io/npm/v/g2plot-calendar.svg)](https://www.npmjs.com/package/g2plot-calendar) |
 
 ## Technology stack packages
 

docs/manual/plugin.zh.md

@@ -59,7 +59,6 @@ plot.render();
 | [G2Plot-QRCode](https://github.com/hustcc/G2Plot-QRCode)         | [前往](https://git.hust.cc/G2Plot-QRCode)             | Draw a QRCode with G2Plot.    | [![npm](https://img.shields.io/npm/v/g2plot-qrcode.svg)](https://www.npmjs.com/package/g2plot-qrcode)     |
 | [G2Plot-Column](https://github.com/yujs/G2Plot-Column)           | [前往](https://yujs.github.io/G2Plot-Column/)         | Customize Column with G2Plot. | [![npm](https://img.shields.io/npm/v/g2plot-column.svg)](https://www.npmjs.com/package/g2plot-column)     |
 | [G2Plot-Lollipop](https://github.com/MrSmallLiu/G2Plot-Lollipop) | [前往](https://mrsmallliu.github.io/G2Plot-Lollipop/) | Welcome to G2Plot-Lollipop 👋 | [![npm](https://img.shields.io/npm/v/g2plot-lollipop.svg)](https://www.npmjs.com/package/g2plot-lollipop) |
-| [G2Plot-Calendar](https://github.com/visiky/G2Plot-Calendar) | [前往](https://visiky.github.io/g2plot-calendar/) | A component like GitHub-contribution-calendar with G2Plot 📅 | [![npm](https://img.shields.io/npm/v/g2plot-calendar.svg)](https://www.npmjs.com/package/g2plot-calendar) |
 
 ## 技术栈封装
 

examples/plugin/multi-view/demo/combo-plot.ts

@@ -20,14 +20,6 @@
       },
       "screenshot": "https://gw.alipayobjects.com/mdn/rms_f5c722/afts/img/A*19AdR6-BjRgAAAAAAAAAAABkARQnAQ"
     },
-    {
-      "filename": "combo-plot.ts",
-      "title": {
-        "zh": "组合图表",
-        "en": "Combo plot"
-      },
-      "screenshot": "https://gw.alipayobjects.com/zos/antfincdn/GMzV%24DSDAX/68a9190b-a4eb-4ad4-be3b-4fef31595a3f.png"
-    },
     {
       "filename": "nobel-prize.ts",
       "title": {