remove sentence "Eigen itself is part of the KDE project."
it never made very precise sense. but now does it still make any?

demos/opengl/camera.cpp

diff --git a/demos/opengl/camera.cpp b/demos/opengl/camera.cpp
index 85fdc0c..a785caf 100644
--- a/demos/opengl/camera.cpp
+++ b/demos/opengl/camera.cpp
@@ -1,5 +1,5 @@
 // This file is part of Eigen, a lightweight C++ template library
-// for linear algebra. Eigen itself is part of the KDE project.
+// for linear algebra.
 //
 // Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
 //