LocaleConfigManager::deleteLanguageTranslations

public LocaleConfigManager::deleteLanguageTranslations($langcode)

public function deleteLanguageTranslations($langcode) {
  $this->isUpdatingFromLocale = TRUE;
  $storage = $this->languageManager->getLanguageConfigOverrideStorage($langcode);
  foreach ($storage->listAll() as $name) {
    $this->languageManager->getLanguageConfigOverride($langcode, $name)->delete();
  }
  $this->isUpdatingFromLocale = FALSE;
}