diff --git a/src/plugins/texteditor/basetextdocument.cpp b/src/plugins/texteditor/basetextdocument.cpp
index 17141e8cc3de4c11c9bb2090bf8e22459fcd7c56..55416636d2831f742b2d315adc6adaa84273f097 100644
--- a/src/plugins/texteditor/basetextdocument.cpp
+++ b/src/plugins/texteditor/basetextdocument.cpp
@@ -47,18 +47,6 @@
 
 using namespace TextEditor;
 
-#if defined (Q_OS_WIN)
-QT_BEGIN_NAMESPACE
-extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
-QT_END_NAMESPACE
-#endif
-
-#if defined (Q_OS_WIN)
-# define NATIVE_LINE_TERMINATOR CRLFLineTerminator
-#else
-# define NATIVE_LINE_TERMINATOR LFLineTerminator
-#endif
-
 DocumentMarker::DocumentMarker(QTextDocument *doc)
   : ITextMarkable(doc), document(doc)
 {