remove MPL2 to avoid confusion

Former-commit-id: 7910f15f59d00cc37fb7ca80b6996c3836732e51

include/igl/copyleft/quadprog.cpp

@@ -1,10 +1,3 @@
-// This file is part of libigl, a simple c++ geometry processing library.
-// 
-// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
-// 
-// This Source Code Form is subject to the terms of the Mozilla Public License 
-// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
-// obtain one at http://mozilla.org/MPL/2.0/.
 #include "quadprog.h"
 #include <vector>
 /*