Rollup merge of #145274 - compiler-errors:unused-must-use, r=fmease

Remove unused `#[must_use]`

Self-explanatory

Fixes https://github.com/rust-lang/rust/issues/145257

compiler/rustc_passes/src/check_attr.rs

@@ -1622,7 +1622,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
             UNUSED_ATTRIBUTES,
             hir_id,
             attr_span,
-            errors::MustUseNoEffect { article, target },
+            errors::MustUseNoEffect { article, target, attr_span },
         );
     }
 

compiler/rustc_passes/src/errors.rs

@@ -469,6 +469,8 @@ pub(crate) struct FfiConstInvalidTarget {
 pub(crate) struct MustUseNoEffect {
     pub article: &'static str,
     pub target: rustc_hir::Target,
+    #[suggestion(code = "", applicability = "machine-applicable", style = "tool-only")]
+    pub attr_span: Span,
 }
 
 #[derive(Diagnostic)]