chore: temporarily revert "feat: print warning messages for unsupported locale"

This reverts commit 83088cb.

I'm afraid we are not ready to review the potential upcoming PRs for new
locales yet. Until we have more capacity, I think it's better to keep
a low profile and not to encourage people to submit new locales.

Author: haoqunjiang

utils/getLanguage.ts

@@ -66,12 +66,6 @@ export default function getLanguage() {
   const languageFilePath = path.resolve(localesRoot, `${locale}.json`)
   const doesLanguageExist = fs.existsSync(languageFilePath)
 
-  if (!doesLanguageExist) {
-    console.warn(
-      `\x1B[33mThe locale langage "${locale}" is not supported, fallback to "en-US".\n\x1B[39m`
-    )
-  }
-
   const lang: Language = doesLanguageExist
     ? require(languageFilePath)
     : require(path.resolve(localesRoot, 'en-US.json'))