QAbstractSocket: remove unused member

Change-Id: I0fa3d9e1b00f38a1b04dddd09ec8c04199ad1f34
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

src/network/socket/qabstractsocket.cpp

@@ -559,7 +559,6 @@ QAbstractSocketPrivate::QAbstractSocketPrivate()
       readBufferMaxSize(0),
       writeBuffer(QABSTRACTSOCKET_BUFFERSIZE),
       isBuffered(false),
-      blockingTimeout(30000),
       connectTimer(0),
       disconnectTimer(0),
       connectTimeElapsed(0),

src/network/socket/qabstractsocket_p.h

@@ -140,7 +140,6 @@ public:
     QRingBuffer writeBuffer;
 
     bool isBuffered;
-    int blockingTimeout;
 
     QTimer *connectTimer;
     QTimer *disconnectTimer;