remove deprecated

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diff --git a/deprecated-ngircd/doc/SSL.md b/deprecated-ngircd/doc/SSL.md
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-# [ngIRCd](https://ngircd.barton.de) - SSL/TLS Encrypted Connections
-
-ngIRCd supports SSL/TLS encrypted connections using the *OpenSSL* or *GnuTLS*
-libraries. Both encrypted server-server links as well as client-server links
-are supported.
-
-SSL is a compile-time option which is disabled by default. Use one of these
-options of the ./configure script to enable it:
-
-- `--with-openssl`: enable SSL support using OpenSSL.
-- `--with-gnutls`: enable SSL support using GnuTLS.
-
-You can check the output of `ngircd --version` to validate if your executable
-includes support for SSL or not: "+SSL" must be listed in the feature flags.
-
-You also need a SSL key and certificate, for example using Let's Encrypt, which
-is out of the scope of this document.
-
-From a feature point of view, ngIRCds support for both libraries is
-comparable. The only major difference (at this time) is that ngIRCd with GnuTLS
-does not support password protected private keys.
-
-## Configuration
-
-SSL-encrypted connections and plain-text connects can't run on the same network
-port (which is a limitation of the IRC protocol); therefore you have to define
-separate port(s) in your `[SSL]` block in the configuration file.
-
-A minimal configuration for *accepting* SSL-encrypted client
-connections looks like this:
-
-``` ini
-[SSL]
-CertFile = /etc/ssl/certs/my-fullchain.pem
-KeyFile = /etc/ssl/certs/my-privkey.pem
-Ports = 6697, 6698
-```
-
-In this case, the server only deals with unauthenticated incoming
-connections and never has to validate SSL certificates itself, and therefore
-no "Certificate Authorities" are needed.
-
-If you want to use *outgoing* SSL-connections to other servers or accept
-incoming *server* connections, you need to add:
-
-``` ini
-[SSL]
-...
-CAFile = /etc/ssl/certs/ca-certificates.crt
-DHFile = /etc/ngircd/dhparams.pem
-
-[SERVER]
-...
-SSLConnect = yes
-```
-
-The `CAFile` option configures a file listing all the certificates of the
-trusted Certificate Authorities.
-
-The Diffie-Hellman parameters file `dhparams.pem` can be created like this:
-
-- OpenSSL: `openssl dhparam -2 -out /etc/ngircd/dhparams.pem 4096`
-- GnuTLS: `certtool --generate-dh-params --bits 4096 --outfile /etc/ngircd/dhparams.pem`
-
-Note that enabling `SSLConnect` not only enforces SSL-encrypted links for
-*outgoing* connections to other servers, but for *incoming* connections as well:
-If a server configured with `SSLConnect = yes` tries to connect on a plain-text
-connection, it won't be accepted to prevent data leakage! Therefore you should
-set this for *all* servers you expect to use SSL-encrypted connections!
-
-## Accepting untrusted Remote Certificates
-
-If you are using self-signed certificates or otherwise invalid certificates,
-which ngIRCd would reject by default, you can force ngIRCd to skip certificate
-validation on a per-server basis and continue establishing outgoing connections
-to the respective peer by setting `SSLVerify = no` in the `[SERVER]` block of
-this remote server in your configuration.
-
-But please think twice before doing so: the established connection is still
-encrypted but the remote site is *not verified at all* and man-in-the-middle
-attacks are possible!