fix: remove unused token import in strategy-plaza page

frontend/app/strategy-plaza/page.tsx

@@ -186,7 +186,7 @@ function StrategyCardComponent({ s }: { s: StrategyCard }) {
 }
 
 export default function StrategyPlazaPage() {
-  const { token } = useAuth();
+  useAuth();
   const [strategies, setStrategies] = useState<StrategyCard[]>([]);
   const [loading, setLoading] = useState(true);
   const [lastUpdated, setLastUpdated] = useState<Date | null>(null);