Fix duplicate toggleUploadSpecial definition in curator client

app/curator/CuratorPageClient.tsx

@@ -541,12 +541,6 @@ export default function CuratorPageClient() {
         );
     };
 
-const toggleUploadSpecial = (specialId: number) => {
-    setUploadSpecialIds(prev =>
-        prev.includes(specialId) ? prev.filter(id => id !== specialId) : [...prev, specialId]
-    );
-};
-
     const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
         const selected = Array.from(e.target.files || []);
         if (selected.length === 0) return;