Merge pull request #29250 from laravel/revert-29123-5.8

[5.8] Revert "[5.8] WithFaker use local faker config"

src/Illuminate/Foundation/Testing/WithFaker.php

@@ -42,6 +42,6 @@ protected function faker($locale = null)
      */
     protected function makeFaker($locale = null)
     {
-        return Factory::create($locale ?? config('app.faker_locale') ?? Factory::DEFAULT_LOCALE);
+        return Factory::create($locale ?? Factory::DEFAULT_LOCALE);
     }
 }