Code cleanup

Fixes #657

data/shaders/shadowmapping/offscreen.frag

@@ -1,10 +1,8 @@
 #version 450
 
 layout(location = 0) out vec4 color;
-//layout(location = 0) out float fragmentdepth;
 
 void main() 
 {	
-//	fragmentdepth = gl_FragCoord.z;
 	color = vec4(1.0, 0.0, 0.0, 1.0);
 }

data/shaders/shadowmapping/scene.frag

@@ -60,7 +60,6 @@ void main()
 	vec3 V = normalize(inViewVec);
 	vec3 R = normalize(-reflect(L, N));
 	vec3 diffuse = max(dot(N, L), ambient) * inColor;
-//	vec3 specular = pow(max(dot(R, V), 0.0), 50.0) * vec3(0.75);
 
 	outFragColor = vec4(diffuse * shadow, 1.0);