Revert "Add missing admin action files and navigation links"

This reverts commit 41be6835bf.

src/app/admin/translations/layout.tsx

@@ -1,17 +0,0 @@
-import { redirect } from 'next/navigation'
-import { canAccess, getAdminContext, PERMS } from '@/lib/permissions'
-import { TranslationsTabs } from './translations-tabs'
-
-export default async function TranslationsLayout({ children }: { children: React.ReactNode }) {
-  const { session, permissions } = await getAdminContext()
-  if (!canAccess(permissions, PERMS.SETTINGS_VIEW, session.user.rank)) {
-    redirect('/admin')
-  }
-
-  return (
-    <div className="space-y-6">
-      <TranslationsTabs />
-      {children}
-    </div>
-  )
-}