Fix clippy.

src/wasm/plain_list_item.rs

@@ -4,11 +4,11 @@ use serde::Serialize;
 use super::ast_node::WasmAstNode;
 use super::macros::to_wasm;
 use super::to_wasm::ToWasm;
-use crate::util::elisp_fact::ElispFact;
 use crate::types::CheckboxType;
 use crate::types::PlainListItem;
 use crate::types::PlainListItemCounter;
 use crate::types::PlainListItemPreBlank;
+use crate::util::elisp_fact::ElispFact;
 use crate::wasm::to_wasm::ToWasmStandardProperties;
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -52,7 +52,7 @@ to_wasm!(
                     })
                     .collect::<Result<Vec<_>, _>>()?,
                 bullet: original.bullet.to_owned(),
-                counter: original.counter.clone(),
+                counter: original.counter,
                 checkbox: original.checkbox.as_ref().map(|(checkbox_type, _)| {
                     match checkbox_type {
                         CheckboxType::On => "on",