use sslConfiguration on socket

A public accessor and mutator was provided for using a QSslConfiguration
with a QAmqpClient, however the configuration was never actually assigned
to the internal socket. This patch fixes that, and removes the needless
storage of a copy of the QSslConfiguration as well

src/qamqpclient.cpp

@@ -789,17 +789,16 @@ QString QAmqpClient::errorString() const
 QSslConfiguration QAmqpClient::sslConfiguration() const
 {
     Q_D(const QAmqpClient);
-    return d->sslConfiguration;
+    return d->socket->sslConfiguration();
 }
 
 void QAmqpClient::setSslConfiguration(const QSslConfiguration &config)
 {
     Q_D(QAmqpClient);
-    d->sslConfiguration = config;
-
     if (!config.isNull()) {
         d->useSsl = true;
         d->port = AMQP_SSL_PORT;
+        d->socket->setSslConfiguration(config);
     }
 }
 

src/qamqpclient_p.h

@@ -5,7 +5,6 @@
 #include <QSharedPointer>
 #include <QPointer>
 #include <QAbstractSocket>
-#include <QSslConfiguration>
 #include <QSslError>
 
 #include "qamqpglobal.h"
@@ -101,8 +100,6 @@ class QAMQP_EXPORT QAmqpClientPrivate : public QAmqpMethodFrameHandler
     QAMQP::Error error;
     QString errorString;
 
-    QSslConfiguration sslConfiguration;
-
     QAmqpClient * const q_ptr;
     Q_DECLARE_PUBLIC(QAmqpClient)