Fix unit test

Change-Id: Ifb825f44aed8a0df90177a8d75ff6cc579df4d7a
Reviewed-on: http://codereview.qt.nokia.com/951
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

src/plugins/projectexplorer/clangparser.cpp

@@ -35,8 +35,6 @@
 #include "taskwindow.h"
 #include "projectexplorerconstants.h"
 
-#include <QtCore/QDir>
-
 using namespace ProjectExplorer;
 
 namespace {