fix: 删除TicketCreatePage遗留的broken代码行

frontend/src/pages/TicketCreatePage.tsx

@@ -251,7 +251,6 @@ export default function TicketCreatePage() {
   /* ================================================================== */
 
   const [showBrowser, setShowBrowser] = useState(true);
-    if (loadingTables) return (
 
   return (
     <div className="h-[calc(100vh-3rem)] overflow-y-auto">