remove deprecated link

content/blog/alias-directory.md

@@ -33,7 +33,7 @@ If you come from [33mail](https://www.33mail.com), a directory is quite similar
 
 - `username` doesn't sound right technically. As it's used in "@username.33mail.com", it should be rather named `subdomain` or maybe `namespace`.
 
-- Our directory ambition is much more than a wildcard alias. With both directory and custom domain, one could use `com/` to handle emails for Communication department, `tech/backend/` for all emails related to the backend team. This is because directory structure is recursive, allowing more combinations. For the moment, directories **only** work with SimpleLogin domains and the possibility to use directories with your custom domains are in progress. You can track its progress on our [roadmap](https://github.com/simple-login/app/projects/1#card-57046977).
+- Our directory ambition is much more than a wildcard alias. With both directory and custom domain, one could use `com/` to handle emails for Communication department, `tech/backend/` for all emails related to the backend team. This is because directory structure is recursive, allowing more combinations. For the moment, directories **only** work with SimpleLogin domains.
 
 - `/` is a perfectly valid email character. According to [Wikipedia](https://en.wikipedia.org/wiki/Email_address)