stackless: remove #[cfg(doc)]

src/func/instances/stackless.rs

@@ -2,13 +2,13 @@
 //! [`Stackless<A>`] represents a wrapped value.
 //!
 //! For lazy stackful execution see [`lazy`].
+//!
+//! [`lazy`]: crate::func::instances::lazy
 
 use std::{cell::Cell, rc::Rc};
 
 use crate::func::class_prelude::*;
 use crate::func::derivations::{ApplicativeLA2ViaSeq, ApplicativeTupleViaLA2};
-#[cfg(doc)]
-use crate::func::instances::*;
 
 enum EvalTree<'a> {
     Atom(Box<dyn 'a + FnOnce() -> Oet<'a>>),