remove fixme about generic interface function we just added

src/main.cpp

@@ -154,7 +154,6 @@ render_cb_pre(RenderState* rs)
 	Entity* ent = &rg->entities[0];
 	setEntityPosition(ent, glm::vec3(lb->pl_positions[0]));
 
-	// FIXME: we need an interface function to update lights
 	GLBuffer* lights_ubo = getUBOByName(rs->gl_ctx, "lights");
 	assert(lights_ubo);
 	updateGLBuffer(lights_ubo, lb->buffer);