Add socket cleanup to reversion

Added removeServer() From 3037 as missed in 3689

src/qt/paymentserver.cpp

@@ -299,7 +299,10 @@ void PaymentServer::initializeServer(QObject* parent, QString ipcServerName, boo
     // other OSes: helpful when dealing with payment request files
     if (parent)
         parent->installEventFilter(this);
-
+
+    // Clean up old socket leftover from a crash:
+    QLocalServer::removeServer(name);
+
     if (startLocalServer)
     {
         uriServer = new QLocalServer(this);