No longer automatically connect UDP on startup. Also removed some dead code

src/QGCCore.cc

@@ -145,9 +145,6 @@ QGCCore::QGCCore(int &argc, char* argv[]) : QApplication(argc, argv)
     // first messages arrive
     UDPLink* udpLink = new UDPLink(QHostAddress::Any, 14550);
     MainWindow::instance()->addLink(udpLink);
-    // Listen on Multicast-Address 239.255.77.77, Port 14550
-    //QHostAddress * multicast_udp = new QHostAddress("239.255.77.77");
-    //UDPLink* udpLink = new UDPLink(*multicast_udp, 14550);
 
 #ifdef OPAL_RT
     // Add OpalRT Link, but do not connect
@@ -163,37 +160,6 @@ QGCCore::QGCCore(int &argc, char* argv[]) : QApplication(argc, argv)
     splashScreen->finish(mainWindow);
 
     if (upgraded) mainWindow->showInfoMessage(tr("Default Settings Loaded"), tr("QGroundControl has been upgraded from version %1 to version %2. Some of your user preferences have been reset to defaults for safety reasons. Please adjust them where needed.").arg(lastApplicationVersion).arg(QGC_APPLICATION_VERSION));
-
-    // Check if link could be connected
-    if (!udpLink->connect())
-    {
-        QMessageBox msgBox;
-        msgBox.setIcon(QMessageBox::Critical);
-        msgBox.setText("Could not connect UDP port. Is an instance of " + qAppName() + "already running?");
-        msgBox.setInformativeText("You will not be able to receive data via UDP. Please check that you're running the right executable and then re-start " + qAppName() + ". Do you want to close the application?");
-        msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
-        msgBox.setDefaultButton(QMessageBox::No);
-        int ret = msgBox.exec();
-
-        // Close the message box shortly after the click to prevent accidental clicks
-        QTimer::singleShot(15000, &msgBox, SLOT(reject()));
-
-        // Exit application
-        if (ret == QMessageBox::Yes)
-        {
-            //mainWindow->close();
-            QTimer::singleShot(200, mainWindow, SLOT(close()));
-        }
-    }
-
-//    forever
-//    {
-//        QGC::SLEEP::msleep(5000);
-//    }
-
-//    mainWindow->close();
-//    mainWindow->deleteLater();
-//    QGC::SLEEP::msleep(200);
 }
 
 /**