small refactoring

core/glprimitives.cpp

@@ -248,7 +248,6 @@ Mesh * Primitive::cylinder(int segments, float radius, float height, float end_a
 	if (end_angle < 360.) {
 		Mesh * cap = Primitive::plane(radius, height);
 		cap->rotatePoints(90, 1, 0, 0);
-		//cap->rotatePoints(-90, 0, 0, 1);
 		cap->translatePoints(radius/2, 0, height/2);
 		ret->append(cap);
 		cap->flipNormals();