Revert "Replace locales loading by a classic IO to try fix a weird bug which sometimes stop the locales loading"
because locales file should be on a CDN on another domain…

This reverts commit e242fa36f2fc3c365675b774aafe19600c9b6154.

Revert "Fix locale loading"

This reverts commit 463a572dbea26a44dd3fdb50bb5218659076d5db.