remove unneeded code.

http_server/http_server.cpp

@@ -1,9 +1,10 @@
 #include "http_server.h"
+
 #include <qobjectdefs.h>
 #include <unistd.h>
 #include <utils/utils.h>
 #include <iostream>
-#include <ofdscene.h>
+#include <mainwindow.h>
 #include <thread>
 
 void HttpServer::generateRandomPort() {
@@ -88,7 +89,7 @@ void HttpServer::handleClient(int clientSocket) {
         std::cerr << response.length() << std::endl;
         std::cerr << QObject::tr("Could not send message").toStdString() << std::endl;
     }
-    emit ((OFDScene *)caller)->httpNewMessage(QString::fromStdString(std::string(buffer)));
+    emit ((MainWindow *)caller)->httpNewMessage(QString::fromStdString(std::string(buffer)));
 }
 
 void HttpServer::acceptClients() {