Constructor should not add itself to LinkManager

src/comm/SerialLink.cc

@@ -15,7 +15,6 @@
 #include <QSerialPort>
 #include <QSerialPortInfo>
 #include "SerialLink.h"
-#include "LinkManager.h"
 #include "QGC.h"
 #include <MG.h>
 
@@ -72,9 +71,6 @@ SerialLink::SerialLink(QString portname, int baudRate, bool hardwareFlowControl,
     qDebug() << "create SerialLink " << portname << baudRate << hardwareFlowControl
              << parity << dataBits << stopBits;
     qDebug() << "m_portName " << m_portName;
-
-    LinkManager::instance()->add(this);
-    qDebug() << "link added to link manager";
 }
 
 void SerialLink::requestReset()

src/qgcunittest/MockLink.cc

@@ -27,8 +27,6 @@
 #include <QDebug>
 #include <QFile>
 
-#include "LinkManager.h"
-
 #include <string.h>
 
 /// @file
@@ -53,7 +51,6 @@ MockLink::MockLink(void) :
     moveToThread(this);
     _loadParams();
     QObject::connect(this, &MockLink::_incomingBytes, this, &MockLink::_handleIncomingBytes);
-    LinkManager::instance()->add(this);
 }
 
 MockLink::~MockLink(void)