reduced includes by means of static code analysis

FileOfv.cc

@@ -52,21 +52,14 @@
 
 #include <OpenMesh/Core/IO/IOManager.hh>
 
-#include <OpenFlipper/ACGHelper/DrawModeConverter.hh>
-
 #if QT_VERSION >= 0x050000
   #include <QtWidgets>
 #else
   #include <QtGui>
 #endif
 
-#include <QFileInfo>
-#include <QSettings>
-
 #include "FileOfv.hh"
 
-#include <iostream>
-
 
 void FileViewPlugin::initializePlugin() {
 }