get rid of iconv

[blizzz]

It is used in

user_saml/lib/UserResolver.php

Line 94 in 5a720dc

$transliterated = @iconv('UTF-8', 'ASCII//TRANSLIT', $sanitized);

which is a known duplication of LDAP code. It was removed in nextcloud/server#29470, user_saml should follow.

cc @come-nc