remove useless state loading

src/pages/Dashboard/Analysis.js

@@ -18,7 +18,6 @@ const OfflineData = React.lazy(() => import('./OfflineData'));
 }))
 class Analysis extends Component {
   state = {
-    loading: true,
     salesType: 'all',
     currentTabKey: '',
     rangePickerValue: getTimeDistance('year'),
@@ -31,11 +30,6 @@ class Analysis extends Component {
         type: 'chart/fetch',
       });
     });
-    setTimeout(() => {
-      this.setState({
-        loading: false,
-      });
-    }, 2000);
   }
 
   componentWillUnmount() {
@@ -96,9 +90,8 @@ class Analysis extends Component {
   };
 
   render() {
-    const { rangePickerValue, salesType, currentTabKey, loading: stateLoading } = this.state;
-    const { chart, loading: propsLoading } = this.props;
-    const loading = stateLoading || propsLoading;
+    const { rangePickerValue, salesType, currentTabKey } = this.state;
+    const { chart, loading } = this.props;
     const {
       visitData,
       visitData2,