fix: delete useless keys to prevent page jitter caused by remounting …

…component (#40327)

* fix: remove useless key

* fix

components/config-provider/demo/locale.tsx

@@ -114,9 +114,9 @@ const App: React.FC = () => {
   };
 
   return (
-    <div>
+    <>
       <div style={{ marginBottom: 16 }}>
-        <span style={{ marginRight: 16 }}>Change locale of components: </span>
+        <span style={{ marginRight: 16 }}>Change locale of components:</span>
         <Radio.Group value={locale} onChange={changeLocale}>
           <Radio.Button key="en" value={enUS}>
             English
@@ -127,11 +127,9 @@ const App: React.FC = () => {
         </Radio.Group>
       </div>
       <ConfigProvider locale={locale}>
-        <Page
-          key={locale ? locale.locale : 'en' /* Have to refresh for production environment */}
-        />
+        <Page />
       </ConfigProvider>
-    </div>
+    </>
   );
 };