rm unused i18n

apps/app/public/static/locales/en_US/translation.json

@@ -489,8 +489,6 @@
     "selected_editable_revision": "Selected Page Body (Editable)"
   },
   "sidebar_aichat": {
-    "title": "Knowledge Assistant",
-    "title_beta_label": "(Beta)",
     "placeholder": "Ask me anything.",
     "summary_mode_label": "Summary mode",
     "summary_mode_help": "Concise answer within 2-3 sentences",

apps/app/public/static/locales/fr_FR/translation.json

@@ -484,8 +484,6 @@
     "selected_editable_revision": "Corps de page sélectionné (Modifiable)"
   },
   "sidebar_aichat": {
-    "title": "Assistant de Connaissance",
-    "title_beta_label": "(Bêta)",
     "placeholder": "Demandez-moi n'importe quoi.",
     "summary_mode_label": "Mode résumé",
     "summary_mode_help": "Réponse concise en 2-3 phrases",

apps/app/public/static/locales/ja_JP/translation.json

@@ -522,8 +522,6 @@
     "selected_editable_revision": "保存するページ本文(編集可能)"
   },
   "sidebar_aichat": {
-    "title": "ナレッジアシスタント",
-    "title_beta_label": "(ベータ)",
     "placeholder": "ききたいことを入力してください",
     "summary_mode_label": "要約モード",
     "summary_mode_help": "2～3文以内の簡潔な回答",

apps/app/public/static/locales/zh_CN/translation.json

@@ -478,8 +478,6 @@
     "selected_editable_revision": "选定的可编辑页面正文"
   },
   "sidebar_aichat": {
-    "title": "知识助手",
-    "title_beta_label": "(测试版)",
     "placeholder": "问我任何问题。",
     "summary_mode_label": "摘要模式",
     "summary_mode_help": "简洁回答在2-3句话内",