i18n: Disabling vietnamese again

frontend/angular.json

@@ -83,10 +83,6 @@
             "translation": "src/locale/messages.uk.xlf",
             "baseHref": "/uk/"
           },
-          "vi": {
-            "translation": "src/locale/messages.vi.xlf",
-            "baseHref": "/vi/"
-          },
           "zh": {
             "translation": "src/locale/messages.zh.xlf",
             "baseHref": "/zh/"

frontend/src/app/app.constants.ts

@@ -111,6 +111,6 @@ export const languages: Language[] = [
 // { code: 'th', name: 'ไทย' },             // Thai
    { code: 'tr', name: 'Türkçe' },          // Turkish
    { code: 'uk', name: 'Українська' },      // Ukrainian
-   { code: 'vi', name: 'Tiếng Việt' },      // Vietnamese
+// { code: 'vi', name: 'Tiếng Việt' },      // Vietnamese
    { code: 'zh', name: '中文' },            // Chinese
 ];