Remove unused derive(Clone) on MacroData.

nnethercote · nnethercote · commit 7cbb736a6029 · 2024-05-10T15:34:43.000+10:00
diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs
@@ -961,7 +961,6 @@ struct DeriveData {
     has_derive_copy: bool,
 }
 
-#[derive(Clone)]
 struct MacroData {
     ext: Lrc<SyntaxExtension>,
     rule_spans: Vec<(usize, Span)>,
