fix: 清除无用代码

src/modules/pages/connection/list/list.ts

@@ -12,7 +12,6 @@ export class ConnectionList extends BI.LoadingPane {
     model: ConnectionListModel['model'];
 
     groupWidget: any;
-    loadingBar: any;
 
     beforeInit(cb: Function) {
         this.store.setConnections().then(() => {
@@ -24,12 +23,6 @@ export class ConnectionList extends BI.LoadingPane {
         connections: () => {
             this.groupWidget.populate(this.renderList());
         },
-        showItemNum: () => {
-            this.groupWidget.addItems(this.renderList(this.model.showItemNum - 50));
-            BI.size(this.model.connections) > this.model.showItemNum ?
-                this.loadingBar.setLoaded() :
-                this.loadingBar.setEnd();
-        },
     }
 
     render() {