Remove unused source file

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Visu smooth shading work in progress

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix visu gouraud shading

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Pass light source as uniform in GLSL shader

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix visu gouraud shading

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>