diff --git a/codex-rs/codex-experimental-api-macros/src/lib.rs b/codex-rs/codex-experimental-api-macros/src/lib.rs
index 69eb71204a..2bca0190ea 100644
--- a/codex-rs/codex-experimental-api-macros/src/lib.rs
+++ b/codex-rs/codex-experimental-api-macros/src/lib.rs
@@ -273,22 +273,6 @@ fn presence_expr_for_access(
     quote! { true }
 }
 
-fn presence_expr_for_ref(access: proc_macro2::TokenStream, ty: &Type) -> proc_macro2::TokenStream {
-    if let Some(inner) = option_inner(ty) {
-        let inner_expr = presence_expr_for_ref(quote!(value), inner);
-        return quote! {
-            #access.as_ref().is_some_and(|value| #inner_expr)
-        };
-    }
-    if is_vec_like(ty) || is_map_like(ty) {
-        return quote! { !#access.is_empty() };
-    }
-    if is_bool(ty) {
-        return quote! { *#access };
-    }
-    quote! { true }
-}
-
 fn option_inner(ty: &Type) -> Option<&Type> {
     let Type::Path(type_path) = ty else {
         return None;