avoid converting types into themselves via .into() (clippy::useless-conversion)

example: let x: String = String::from("hello world").into();

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/mbe/src/expander/matcher.rs b/crates/mbe/src/expander/matcher.rs
index 2c69e8968..1bf7c2e81 100644
--- a/crates/mbe/src/expander/matcher.rs
+++ b/crates/mbe/src/expander/matcher.rs
@@ -722,7 +722,7 @@ fn match_meta_var(kind: &str, input: &mut TtIter) -> ExpandResult<Option<Fragmen
                     input
                         .expect_literal()
                         .map(|literal| {
-                            let lit = tt::Leaf::from(literal.clone());
+                            let lit = literal.clone();
                             match neg {
                                 None => Some(lit.into()),
                                 Some(neg) => Some(tt::TokenTree::Subtree(tt::Subtree {