[aur-general] remove kernel26-slk and nvidia-slk

For some reasons i replaced kernel26-slk with kernel26-bede why ?: the original naming is because it is inspired by the slackware config, but now its just some settings which are different from the stock arch kernel which make my linux experience nicer than with the default. so could kernel26-slk and nvidia-slk be replaced by: kernel26-bede and nvidia-bede thx kernel26-slk: https://aur.archlinux.org/packages.php?ID=36738 nvidia-slk: https://aur.archlinux.org/packages.php?ID=36769