fix(client): remove redundant warning text from archive content notice (#65444)

Co-authored-by: Huyen Nguyen <25715018+huyenltnguyen@users.noreply.github.com>

client/i18n/locales/english/translations.json

@@ -715,7 +715,7 @@
     },
     "archive": {
       "title": "Archived Coursework",
-      "content-not-updated": "<0>Warning:</0> The content in this section is not being updated, but is still available for you to further your learning. We recommend trying <1>our current curriculum</1>."
+      "content-not-updated": "The content in this section is not being updated, but is still available for you to further your learning. We recommend trying <0>our current curriculum</0>."
     }
   },
   "donate": {

client/src/components/archived-warning/index.tsx

@@ -10,9 +10,8 @@ const ArchivedWarning = () => {
   const { t } = useTranslation();
   return (
     <Callout variant='note' label={t('misc.note')}>
-      <p className='text-center archived-warning'>
+      <p className='archived-warning'>
         <Trans i18nKey='learn.archive.content-not-updated'>
-          <strong>placeholder</strong>
           <Link to={'/learn/full-stack-developer'}>placeholder</Link>
         </Trans>
       </p>