removed the old event admin components and pages

resources/js/admin/mobile/eventDate.ts

@@ -0,0 +1,7 @@
+export function isPastEvent(dateIso?: string | null): boolean {
+  if (!dateIso) return false;
+  const date = new Date(dateIso);
+  if (Number.isNaN(date.getTime())) return false;
+  const now = new Date();
+  return date.getTime() < now.getTime();
+}