Don't attempt to send shutdown which won't work anyway.

network.cpp

@@ -37,8 +37,6 @@ Network::Network()
         sendIpify();
     connect(&m_networkManager, &QNetworkAccessManager::sslErrors, this,
         &Network::handleSslErrors);
-    connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this,
-        &Network::sendShutdown);
 }
 
 void Network::setActive(bool b)
@@ -210,13 +208,6 @@ void Network::sendStartup()
     sendMixpanelEvent("startup");
 }
 
-void Network::sendShutdown()
-{
-    if (!m_usageStatsActive)
-        return;
-    sendMixpanelEvent("shutdown");
-}
-
 void Network::sendCheckForUpdates()
 {
     if (!m_usageStatsActive)

network.h

@@ -33,7 +33,6 @@ public Q_SLOTS:
     void sendModelLoaded();
     void sendResetContext();
     void sendStartup();
-    void sendShutdown();
     void sendCheckForUpdates();
 
 private Q_SLOTS: