Revert "Add missing admin action files and navigation links"

This reverts commit 41be6835bf.

src/actions/badges.ts

@@ -1,25 +0,0 @@
-"use server";
-
-import { revalidatePath } from "next/cache";
-import { requireStaff } from "@/lib/admin/guard";
-import { prisma } from "@/lib/prisma";
-
-export async function getBadgeData({ code }: { code: string }) {
-  await requireStaff();
-  const badge = await prisma.websiteBadges.findUnique({
-    where: { badgeKey: code },
-    select: { badgeName: true, badgeDescription: true },
-  });
-  if (!badge) return { ok: false as const, data: null };
-  return { ok: true as const, data: { name: badge.badgeName, desc: badge.badgeDescription } };
-}
-
-export async function updateBadge({ code, name, desc }: { code: string; name: string; desc: string }) {
-  await requireStaff();
-  await prisma.websiteBadges.upsert({
-    where: { badgeKey: code },
-    update: { badgeName: name, badgeDescription: desc, updatedAt: new Date() },
-    create: { badgeKey: code, badgeName: name, badgeDescription: desc, createdAt: new Date(), updatedAt: new Date() },
-  });
-  revalidatePath("/admin/import/badges");
-}