Remove custom taxonomy slug from URL

Why don’t you try to create a slug of your own. And then link it up to your desire things.

Just use this function:

function slugify($str){
$search = array('Ș', 'Ț', 'ş', 'ţ', 'Ş', 'Ţ', 'ș', 'ț', 'î', 'â', 'ă', 'Î', 'Â', 'Ă', 'ë', 'Ë');
$replace = array('s', 't', 's', 't', 's', 't', 's', 't', 'i', 'a', 'a', 'i', 'a', 'a', 'e', 'E');
$str = str_ireplace($search, $replace, strtolower(trim($str)));
$str = preg_replace('/[^\w\d-\ ]/', '', $str);
$str = str_replace(' ', '-', $str);
return (substr($str, -1) == '-' ? substr($str, 0, -1) : $str );
}

and provide the string into this function bingo! I did little bit customization in this function.

What I am saying is create a custom-field with custom-post-type then make it read-only. And put your desire link in there. Everything will be fine.