test: remove language tag tests as it doesn't really test the correct…

…ness of tags

web/src/lib/i18n.spec.ts

@@ -31,16 +31,4 @@ describe('i18n', () => {
     // Only translations directly using the store seem to get extracted
     expect({ ...extractedMessages, ...existingMessages }).toEqual(existingMessages);
   });
-
-  describe('language tags', () => {
-    for (const lang of langs) {
-      if (lang.code === 'dev') {
-        continue;
-      }
-
-      test(`language tag ${lang.code} is valid`, () => {
-        expect(Intl.NumberFormat.supportedLocalesOf(lang.code)).toHaveLength(1);
-      });
-    }
-  });
 });