Feat: Delete useless code #4242 (#4267)

### What problem does this PR solve?

Feat: Delete useless code #4242

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/workflow.less

@@ -1,5 +0,0 @@
-.react-flow-subflows-example {
-  .react-flow__node-group {
-    padding: 0;
-  }
-}

web/src/pages/workflow.tsx

@@ -1,151 +0,0 @@
-import { useCallback } from 'react';
-import ReactFlow, {
-  Background,
-  Controls,
-  Handle,
-  MiniMap,
-  NodeProps,
-  Position,
-  addEdge,
-  useEdgesState,
-  useNodesState,
-} from 'reactflow';
-import 'reactflow/dist/style.css';
-
-import './workflow.less';
-
-const initialNodes = [
-  {
-    id: '1',
-    type: 'input',
-    data: { label: 'Node 0' },
-    position: { x: 250, y: 5 },
-    className: 'light',
-  },
-  {
-    id: '2',
-    data: { label: 'Group A' },
-    position: { x: 100, y: 100 },
-    className: 'light',
-    style: { backgroundColor: 'rgba(255, 0, 0, 0.2)', width: 200, height: 200 },
-  },
-  {
-    id: '2a',
-    data: { label: 'Node A.1' },
-    position: { x: 10, y: 50 },
-    parentId: '2',
-  },
-  {
-    id: '3',
-    data: { label: 'Node 1' },
-    position: { x: 320, y: 100 },
-    className: 'light',
-  },
-  {
-    id: '4',
-    data: { label: 'Group B' },
-    position: { x: 320, y: 200 },
-    className: 'light',
-    style: { backgroundColor: 'rgba(255, 0, 0, 0.2)', width: 300, height: 300 },
-    type: 'group',
-  },
-  {
-    id: '4a',
-    data: { label: 'Node B.1' },
-    position: { x: 15, y: 65 },
-    className: 'light',
-    parentId: '4',
-    extent: 'parent',
-    draggable: false,
-  },
-  {
-    id: '4b',
-    data: { label: 'Group B.A' },
-    position: { x: 15, y: 120 },
-    className: 'light',
-    style: {
-      backgroundColor: 'rgba(255, 0, 255, 0.2)',
-      height: 150,
-      width: 270,
-    },
-    parentId: '4',
-  },
-  {
-    id: '4b1',
-    data: { label: 'Node B.A.1' },
-    position: { x: 20, y: 40 },
-    className: 'light',
-    parentId: '4b',
-  },
-  {
-    id: '4b2',
-    data: { label: 'Node B.A.2' },
-    position: { x: 100, y: 100 },
-    className: 'light',
-    parentId: '4b',
-  },
-];
-
-const initialEdges = [
-  { id: 'e1-2', source: '1', target: '2', animated: true },
-  { id: 'e1-3', source: '1', target: '3' },
-  { id: 'e2a-4a', source: '2a', target: '4a' },
-  { id: 'e3-4b', source: '3', target: '4b' },
-  { id: 'e4a-4b1', source: '4a', target: '4b1' },
-  { id: 'e4a-4b2', source: '4a', target: '4b2' },
-  { id: 'e4b1-4b2', source: '4b1', target: '4b2' },
-];
-
-export function RagNode({ id, data, isConnectable = true }: NodeProps<any>) {
-  return (
-    <section className="ragflow-group w-full h-full">
-      <div className="h-10 bg-slate-200 text-orange-400">header</div>
-      <Handle
-        id="c"
-        type="source"
-        position={Position.Left}
-        isConnectable={isConnectable}
-      ></Handle>
-      <Handle
-        type="source"
-        position={Position.Right}
-        isConnectable={isConnectable}
-        id="b"
-      ></Handle>
-      <div className="w-full h-10">xxx</div>
-    </section>
-  );
-}
-
-const nodeTypes = { group: RagNode };
-
-const NestedFlow = () => {
-  const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
-  const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
-
-  const onConnect = useCallback((connection) => {
-    setEdges((eds) => addEdge(connection, eds));
-  }, []);
-
-  return (
-    <ReactFlow
-      nodes={nodes}
-      edges={edges}
-      onNodesChange={onNodesChange}
-      onEdgesChange={onEdgesChange}
-      onConnect={onConnect}
-      className="react-flow-subflows-example"
-      fitView
-      onNodeClick={(node) => {
-        console.log(node);
-      }}
-      nodeTypes={nodeTypes}
-    >
-      <MiniMap />
-      <Controls />
-      <Background />
-    </ReactFlow>
-  );
-};
-
-export default NestedFlow;

web/src/routes.ts

@@ -246,11 +246,6 @@ const routes = [
       },
     ],
   },
-  {
-    path: '/workflow',
-    component: '@/pages/workflow',
-    layout: false,
-  },
 ];
 
 export default routes;