QSslConfiguration: remove example

It uses the ciphersuite name which smart tools one day will mark as
weak (i.e. https://ciphersuite.info/cs/TLS_DHE_DSS_WITH_AES_256_CBC_SHA/
in our example), names in the example are not in the standard notation,
+ it is and always was OpenSSL-specific example.

Pick-to: 6.6 6.5 6.2
Fixes: QTBUG-119464
Change-Id: Ic6f095ff2c861582de756bf220e2e74106b88e83
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

src/network/doc/snippets/code/src_network_ssl_qsslconfiguration.cpp

@@ -6,10 +6,3 @@ QSslConfiguration config = sslSocket.sslConfiguration();
 config.setProtocol(QSsl::TlsV1_2);
 sslSocket.setSslConfiguration(config);
 //! [0]
-
-
-//! [1]
-QSslConfiguration tlsConfig = QSslConfiguration::defaultConfiguration();
-tlsConfig.setCiphers(QStringLiteral("DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:AES256-SHA"));
-//! [1]
-

src/network/ssl/qsslconfiguration.cpp

@@ -577,10 +577,7 @@ void QSslConfiguration::setCiphers(const QList<QSslCipher> &ciphers)
 
     Sets the cryptographic cipher suite for this configuration to \a ciphers,
     which is a colon-separated list of cipher suite names. The ciphers are listed
-    in order of preference, starting with the most preferred cipher. For example:
-
-    \snippet code/src_network_ssl_qsslconfiguration.cpp 1
-
+    in order of preference, starting with the most preferred cipher.
     Each cipher name in \a ciphers must be the name of a cipher in the
     list returned by supportedCiphers().  Restricting the cipher suite
     must be done before the handshake phase, where the session cipher