Clean up

src/constant_medium.rs

@@ -2,7 +2,6 @@ use std::sync::Arc;
 use crate::{Aabb, Color, Material, Ray, Vec3};
 use crate::hittable::{HitRecord, Hittable};
 use crate::isotropic::Isotropic;
-use crate::material::Scatterable;
 use crate::texture::Texture;
 
 /*

src/image_texture.rs

@@ -1,11 +1,4 @@
-/*
-        let img = image::open("tests/images/jpg/progressive/cat.jpg").unwrap();
-        let rgnbi = img.into_rgb8();
-        rgnbi.get_pixel(0, 0);
-        rgnbi.
-
- */
-use image::{Pixel, RgbImage};
+use image::{RgbImage};
 use crate::{Color, Point3};
 use crate::texture::Texture;