diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
index 73d8f456dc30d..ef60f08bf020b 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
@@ -834,7 +834,6 @@ fn non_exhaustive_match<'p, 'tcx>(
     let all_arms_have_guards = arms.iter().all(|arm_id| thir[*arm_id].guard.is_some());
     if !is_empty_match && all_arms_have_guards {
         err.subdiagnostic(NonExhaustiveMatchAllArmsGuarded);
-        // err.note(NonExhaustiveMatchAllArmsGuarded);
     }
     if let Some((span, sugg)) = suggestion {
         err.span_suggestion_verbose(span, msg, sugg, Applicability::HasPlaceholders);