Plugin Author
Tim W
(@timwhitlock)
Loco Translate doesn’t store translations in the database. They are store in PO/Mo files. It stores only a small amount of metadata. None of this is removed when you uninstall the plugin.
You can flush all metadata and settings with this SQL:
DELETE FROM wp_options WHERE option_name LIKE 'loco_%'
OR option_name LIKE '_transient%loco_%';
DELETE FROM wp_usermeta WHERE meta_key LIKE 'loco_%';
As for any translation files you don’t want, you will have to find them on your file system and remove them as needed.