fix: remove airline demo

packages/site/examples/scene-case/default/demo/airlines-graph.js

@@ -1,53 +0,0 @@
-import { Graph } from '@antv/g6';
-
-fetch('https://gw.alipayobjects.com/os/basement_prod/7ba82250-8367-4351-82b2-d48604cd2261.json')
-  .then((res) => res.json())
-  .then((data) => {
-    const graph = new Graph({
-      container: 'container',
-      autoFit: 'view',
-      data,
-      node: {
-        type: 'donut',
-        style: {
-          x: (d) => d.x,
-          y: (d) => -d.y,
-          innerR: 0,
-          donuts: function (d) {
-            const inDegrees = this.getRelatedEdgesData(d.id, 'in').length;
-            const outDegrees = this.getRelatedEdgesData(d.id, 'out').length;
-            return [
-              { value: outDegrees, fill: 'rgb(230, 100, 64)' },
-              { value: inDegrees, fill: 'rgb(119, 243, 252)' },
-            ];
-          },
-        },
-      },
-      edge: {
-        style: {
-          lineWidth: 0.3,
-          stroke: 'l(0) 0:#FFAA86 1:#C8FDFC',
-        },
-      },
-      transforms: [
-        {
-          key: 'map-node-size',
-          type: 'map-node-size',
-          maxSize: 20,
-          minSize: 2,
-          scale: 'linear',
-        },
-      ],
-      behaviors: ['drag-canvas', 'zoom-canvas'],
-      plugins: [
-        {
-          key: 'edge-bundling',
-          type: 'edge-bundling',
-          bundleThreshold: 0.1,
-
-        },
-      ],
-    });
-
-    graph.render();
-  });

packages/site/examples/scene-case/default/demo/meta.json

@@ -91,14 +91,6 @@
         "en": "Why Do Cats?"
       },
       "screenshot": "https://mdn.alipayobjects.com/huamei_qa8qxu/afts/img/A*ug4vTJA7QbMAAAAAAAAAAAAADmJ7AQ/original"
-    },
-    {
-      "filename": "airlines-graph.js",
-      "title": {
-        "zh": "美国航线图",
-        "en": "US Airlines Graph"
-      },
-      "screenshot": ""
     }
   ]
 }