remove unused code

packages/core/src/interfaces/lang.ts

@@ -3,22 +3,5 @@ export const Lang = {
   ja_JP: 'ja_JP',
   zh_CN: 'zh_CN',
 } as const;
-export const LangWithMeta = {
-  en_US: {
-    id: 'en_US',
-    displayName: 'English',
-    aliases: ['en'],
-  },
-  ja_JP: {
-    id: 'ja_JP',
-    displayName: '日本語',
-    aliases: ['ja'],
-  },
-  zh_CN: {
-    id: 'zh_CN',
-    displayName: '简体中文',
-    aliases: ['zh', 'zh-HK', 'zh-CN', 'zh-TW', 'zh-hk', 'zh-cn', 'zh-tw'],
-  },
-} as const;
 export const AllLang = Object.values(Lang);
 export type Lang = typeof Lang[keyof typeof Lang];