diff --git a/api/legacy_stats_types.h b/api/legacy_stats_types.h
index 5cd3801d4b..e49cb6d6dd 100644
--- a/api/legacy_stats_types.h
+++ b/api/legacy_stats_types.h
@@ -333,12 +333,6 @@ class RTC_EXPORT StatsReport {
     bool bool_val() const;
     const Id& id_val() const;
 
-// TODO(bugs.webrtc.org/15241): remove this definition once downstream
-// definitions of StatsReport::Value::id_val() have been deleted.
-#ifndef WEBRTC_DEFINES_STATSREPORT_VALUE_ID_VAL
-#define WEBRTC_DEFINES_STATSREPORT_VALUE_ID_VAL
-#endif  // WEBRTC_DEFINES_STATSREPORT_VALUE_ID_VAL
-
     // Returns the string representation of `name`.
     const char* display_name() const;