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diff --git a/src/threed/geometry/qvector_utils_p.h b/src/threed/geometry/qvector_utils_p.h
deleted file mode 100644
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--- a/src/threed/geometry/qvector_utils_p.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtQuick3D module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QVECTOR_UTILS_P_H
-#define QVECTOR_UTILS_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtGui/qvector3d.h>
-#include <QtGui/qvector2d.h>
-
-// Replacement for qFuzzyCompare(QVector3D, QVector3D) and friends,
-// for a specific case where the results are going to be rendered
-// by the GPU onto a display.
-//
-// The accuracy of this comparison should not change.  Especially it
-// should not change when you go from doubles to floats or when
-// you get close to zero.  If two verts or lighting normals are
-// the same to within 5 places of floating point accuracy then they
-// will dislay as being on top of each other.
-//
-// Also this avoids doing 3 floating point multiplications every time
-// since the normal qFuzzyIsNull does a mul to scale the epsilon when
-// close to zero.
-
-inline bool qFskIsNull(double d)
-{
-    return qAbs(d) <= 0.00001;
-}
-
-inline bool qFskIsNull(float f)
-{
-    return qAbs(f) <= 0.00001f;
-}
-
-inline bool qFskCompare(float a, float b)
-{
-    return qFskIsNull(a - b);
-}
-
-inline bool qFskCompare(double a, double b)
-{
-    return qFskIsNull(a - b);
-}
-
-inline bool qFskCompare(const QVector3D &a, const QVector3D &b)
-{
-    return (
-            qFskIsNull(a.x() - b.x()) &&
-            qFskIsNull(a.y() - b.y()) &&
-            qFskIsNull(a.z() - b.z())
-            );
-}
-
-inline bool qFskCompare(const QVector2D &a, const QVector2D &b)
-{
-    return (
-            qFskIsNull(a.x() - b.x()) &&
-            qFskIsNull(a.y() - b.y())
-            );
-}
-
-#endif // QVECTOR_UTILS_P_H