First pass on removing license notice in header for GPL files

GraphicsView/src/CGAL_Qt5/GraphicsViewPolylineInput.cpp

@@ -2,15 +2,6 @@
 // All rights reserved.
 //
 // This file is part of CGAL (www.cgal.org).
-// You can redistribute it and/or modify it under the terms of the GNU
-// General Public License as published by the Free Software Foundation,
-// either version 3 of the License, or (at your option) any later version.
-//
-// Licensees holding a valid commercial license may use this file in
-// accordance with the commercial license agreement provided with the software.
-//
-// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 //
 // $URL$
 // $Id$