website cleanup

apps/website/app/sponsor/billing/page.tsx

@@ -304,18 +304,6 @@ export default function SponsorBillingPage() {
     );
   }
 
-  const handleSetDefault = (methodId: string) => {
-    setPaymentMethods(methods => 
-      methods.map(m => ({ ...m, isDefault: m.id === methodId }))
-    );
-  };
-
-  const handleRemoveMethod = (methodId: string) => {
-    if (confirm('Remove this payment method?')) {
-      setPaymentMethods(methods => methods.filter(m => m.id !== methodId));
-    }
-  };
-
   const handleSetDefault = (methodId: string) => {
     // In a real app, this would call an API
     console.log('Setting default payment method:', methodId);