rustdoc: remove unnecessary binding

Author: notriddle

src/librustdoc/html/render/type_layout.rs

@@ -56,7 +56,7 @@ pub(crate) fn document_type_layout<'a, 'cx: 'a>(
  } else {
  span_bug!(cx.tcx().def_span(ty_def_id), "tag is neither niche nor int")
  };
- let variants = variants
+ variants
  .iter_enumerated()
  .map(|(variant_idx, variant_layout)| {
  let Adt(adt, _) = type_layout.ty.kind() else {
@@ -68,12 +68,11 @@ pub(crate) fn document_type_layout<'a, 'cx: 'a>(
  let size = variant_layout.size.bytes() - tag_size;
  let type_layout_size = TypeLayoutSize { is_unsized, is_uninhabited, size };
  (name, type_layout_size)
- }).collect();
- variants
+ })
+  .collect()
  } else {
  Vec::new()
- }
- ;
+ };
 
  let type_layout_size = tcx.layout_of(param_env.and(ty)).map(|layout| {
  let is_unsized = layout.abi.is_unsized();