i18n [nfc]: Remove data from src/settings/languages.js.

By design, the data in `i18n/language_list.js` is identical to the
data in `src/settings/languages.js`. Remove the latter and replace it
with imports of the former.

Author: rk-for-zulip

src/settings/languages.js

@@ -1,75 +1,13 @@
 /* @flow strict-local */
 /* eslint-disable spellcheck/spell-checker */
 
-export type Language = {
-  locale: string,
-  name: string,
-  nativeName: string,
-};
+import { type Language, languageData } from '../i18n/language_list';
 
-/**
- * The set of languages we offer in the language settings screen.
- *
- * The translation data files in `static/translations/` include all the
- * languages we have open on Transifex for people to translate.  This means
- * all the languages that someone's expressed interest in translating Zulip
- * into, and there are usually some that aren't yet much translated at all.
- *
- * To avoid offering users a translation into their language when it won't
- * actually do anything, we maintain this separate list of languages that
- * are translated to an adequate level.
- *
- * The Zulip webapp offers a language in the UI when it's over 5%
- * translated.  (Search for `percent_translated` in the server code.)
- * To see translation percentages, consult Transifex:
- *   https://www.transifex.com/zulip/zulip/mobile/
- *
- * For the values of `nativeName`, consult Wikipedia:
- *   https://meta.wikimedia.org/wiki/List_of_Wikipedias
- * or better yet, Wikipedia's own mobile UIs.  Wikipedia is a very
- * conscientiously international and intercultural project with a lot of
- * effort going into it by speakers of many languages, which makes it a
- * useful gold standard for this.
- */
-const languages: $ReadOnlyArray<Language> = [
-  { locale: 'bg', name: 'Bulgarian', nativeName: 'Български' },
-  { locale: 'ca', name: 'Catalan', nativeName: 'Català' },
-  { locale: 'cs', name: 'Czech', nativeName: 'Čeština' },
-  { locale: 'de', name: 'German', nativeName: 'Deutsch' },
-  { locale: 'en', name: 'English', nativeName: 'English' },
-  // TODO: add `en_GB` -- it's "100% translated", though that just means
-  //   the one string mentioning "organization" has s/z/s/ in that word
-  { locale: 'es', name: 'Spanish', nativeName: 'Español' },
-  { locale: 'fa', name: 'Persian', nativeName: 'فارسی' },
-  { locale: 'fi', name: 'Finnish', nativeName: 'Suomi' },
-  { locale: 'fr', name: 'French', nativeName: 'Français' },
-  { locale: 'gl', name: 'Galician', nativeName: 'Galego' },
-  { locale: 'hi', name: 'Hindi', nativeName: 'हिन्दी' },
-  { locale: 'hu', name: 'Hungarian', nativeName: 'Magyar' },
-  { locale: 'id-ID', name: 'Indonesian', nativeName: 'Bahasa Indonesia' },
-  { locale: 'it', name: 'Italian', nativeName: 'Italiano' },
-  { locale: 'ja', name: 'Japanese', nativeName: '日本語' },
-  { locale: 'ko', name: 'Korean', nativeName: '한국어' },
-  { locale: 'lt', name: 'Lithuanian', nativeName: 'Lietuvių' },
-  { locale: 'ml', name: 'Malayalam', nativeName: 'മലയാളം' },
-  { locale: 'nl', name: 'Dutch', nativeName: 'Nederlands' },
-  { locale: 'pl', name: 'Polish', nativeName: 'Polski' },
-  { locale: 'pt', name: 'Portuguese', nativeName: 'Português' },
-  { locale: 'ro', name: 'Romanian', nativeName: 'Română' },
-  { locale: 'ru', name: 'Russian', nativeName: 'Русский' },
-  { locale: 'sr', name: 'Serbian', nativeName: 'Српски' },
-  { locale: 'sv', name: 'Swedish', nativeName: 'Svenska' },
-  { locale: 'ta', name: 'Tamil', nativeName: 'தமிழ்' },
-  { locale: 'tr', name: 'Turkish', nativeName: 'Türkçe' },
-  { locale: 'uk', name: 'Ukrainian', nativeName: 'Українська' },
-  { locale: 'vi', name: 'Vietnamese', nativeName: 'Tiếng Việt' },
-  { locale: 'zh-Hans', name: 'Chinese (Simplified)', nativeName: '中文 (简体)' },
-  { locale: 'zh-Hant', name: 'Chinese (Traditional)', nativeName: '中文 (繁体)' },
-];
+export type { Language } from '../i18n/language_list';
 
 const sortForDisplay = (arr: $ReadOnlyArray<Language>): $ReadOnlyArray<Language> =>
   [...arr].sort((a, b) =>
     a.locale === 'en' ? -1 : b.locale === 'en' ? +1 : a.name < b.name ? -1 : +1,
   );
 
-export default sortForDisplay(languages);
+export default sortForDisplay(languageData);