feat(linter): correct comment handling in no_useless_undefined rule

crates/oxc_linter/src/rules/unicorn/no_useless_undefined.rs

@@ -177,13 +177,13 @@ impl Rule for NoUselessUndefined {
                         ctx.diagnostic_with_fix(
                             no_useless_undefined_diagnostic(undefined_literal.span),
                             |fixer| {
-                                let delete_span = if let Some((_, comment)) = ctx
+                                let delete_span = if let Some(comment) = ctx
                                     .semantic()
                                     .trivias()
                                     .comments_range(ret_stmt.span.start..ret_stmt.span.end)
                                     .last()
                                 {
-                                    Span::new(comment.end + 2, undefined_literal.span.end)
+                                    Span::new(comment.span.end + 2, undefined_literal.span.end)
                                 } else {
                                     Span::new(ret_stmt.span().start + 6, undefined_literal.span.end)
                                 };