diff --git a/api/stats/rtcstats_objects.h b/api/stats/rtcstats_objects.h
index 9adf48b6a7..38aa57b48f 100644
--- a/api/stats/rtcstats_objects.h
+++ b/api/stats/rtcstats_objects.h
@@ -428,10 +428,6 @@ class RTC_EXPORT RTCInboundRtpStreamStats final
 
   // The former googMinPlayoutDelayMs (in seconds).
   RTCNonStandardStatsMember<double> min_playout_delay;
-
-  // Temporarily added to unblock a roll.
-  // TODO(https://crbug.com/webrtc/15198): Delete this.
-  RTCStatsMember<std::string> track_id;
 };
 
 // https://w3c.github.io/webrtc-stats/#outboundrtpstats-dict*
@@ -483,10 +479,6 @@ class RTC_EXPORT RTCOutboundRtpStreamStats final
   RTCRestrictedStatsMember<bool, StatExposureCriteria::kHardwareCapability>
       power_efficient_encoder;
   RTCStatsMember<std::string> scalability_mode;
-
-  // Temporarily added to unblock a roll.
-  // TODO(https://crbug.com/webrtc/15198): Delete this.
-  RTCStatsMember<std::string> track_id;
 };
 
 // https://w3c.github.io/webrtc-stats/#remoteinboundrtpstats-dict*
diff --git a/stats/rtcstats_objects.cc b/stats/rtcstats_objects.cc
index 888a77b37e..67cb1c58f2 100644
--- a/stats/rtcstats_objects.cc
+++ b/stats/rtcstats_objects.cc
@@ -486,8 +486,7 @@ RTCInboundRtpStreamStats::RTCInboundRtpStreamStats(std::string id,
       relative_packet_arrival_delay("relativePacketArrivalDelay"),
       interruption_count("interruptionCount"),
       total_interruption_duration("totalInterruptionDuration"),
-      min_playout_delay("minPlayoutDelay"),
-      track_id("trackId") {}
+      min_playout_delay("minPlayoutDelay") {}
 
 RTCInboundRtpStreamStats::RTCInboundRtpStreamStats(
     const RTCInboundRtpStreamStats& other) = default;
@@ -561,8 +560,7 @@ RTCOutboundRtpStreamStats::RTCOutboundRtpStreamStats(std::string id,
       qp_sum("qpSum"),
       active("active"),
       power_efficient_encoder("powerEfficientEncoder"),
-      scalability_mode("scalabilityMode"),
-      track_id("trackId") {}
+      scalability_mode("scalabilityMode") {}
 
 RTCOutboundRtpStreamStats::RTCOutboundRtpStreamStats(
     const RTCOutboundRtpStreamStats& other) = default;