[config:export] Warnings on language/XX directories

[Omegadela]

Problem/Motivation

When using Drupal Console to export configuration made in development environments there should be no unnecessary warnings.

How to reproduce

• Drupal version : 8.5.1
• Console version : 1.8.0
• Run drupal config:export command on a site with multiple languages and a configuration already exported with the same command.
  PS: using Lando here, but not relevant for the issue.

• Known workarounds : manually delete sync folder before the command.

Solution

Use Symfony's FileSystem component for unlink and mkdir

[Omegadela]

PR #3863

[LOBsTerr]

@Omegadela Thanks, it was merged