i18n: drop the two Radio launcher strings from zh-Hant

The Traditional Chinese catalog came in with main after this branch removed
the "Go to expanded Radio section" and "Expand Radio section in Context"
labels, so the merge left them stale (npm run i18n -- --prune).

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/i18n/locales/zh-Hant.json

@@ -1848,8 +1848,6 @@
   "STATION UNAVAILABLE": "電臺不可用",
   "Station unavailable after directory refresh": "目錄刷新後該電臺不可用",
   "Radio could not {action} cleanly": "電臺未能正常{action}",
-  "Go to expanded Radio section": "前往展開的電臺區域",
-  "Expand Radio section in Context": "在態勢面板中展開電臺區域",
   "Close compact Radio controls": "關閉精簡電臺控件",
   "Open compact Radio controls": "打開精簡電臺控件",
   "SYNC": "同步",