[Pushed] None-translated language using in AdminCP

[noyle]

admin/modules/user/admin_permissions.php:
https://github.com/mybb/mybb/blob/mybb_1...s.php#L356

According to
confirm_perms_deletion2 => Are you sure you wish to revoke this user\'s permissions?
it looks like that another phrase should be added:
confirm_perms_deletion1 => Are you sure you wish to revoke this group\'s permissions?

[Eldenroot]

Confirmed, should be added

[Ben]

Hi,

Thank you for your report. We have pushed this issue to our Github repository for further analysis where you can track our commits and progress with fixing this bug. Discussions regarding this bug may also take place there too.

Follow this link to visit the issue on Github: https://github.com/mybb/mybb/issues/3997

Thanks for contributing to MyBB!

Regards,
The MyBB Group