fix: release eq

src/ty/internal/list.rs

@@ -1,11 +1,9 @@
 use std::ops::Deref;
-use std::rc::Weak;
 
 use ecow::EcoVec;
 use hashbrown::HashSet;
 
 use crate::engine::Engine;
-use crate::env::Env;
 use crate::ty::public as p;
 
 use super::Value;