diff --git a/api/stats/rtc_stats.h b/api/stats/rtc_stats.h
index 30a725bb66..0bd70a0fb5 100644
--- a/api/stats/rtc_stats.h
+++ b/api/stats/rtc_stats.h
@@ -206,21 +206,6 @@ class RTC_EXPORT RTCStats {
     return parent_class::MembersOfThisObjectAndAncestors(0);                \
   }
 
-// Non-standard stats members can be exposed to the JavaScript API in Chrome
-// e.g. through origin trials. The group ID can be used by the blink layer to
-// determine if a stats member should be exposed or not. Multiple non-standard
-// stats members can share the same group ID so that they are exposed together.
-enum class NonStandardGroupId {
-  // Group ID used for testing purposes only.
-  kGroupIdForTesting,
-  // I2E:
-  // https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/hE2B1iItPDk
-  kRtcAudioJitterBufferMaxPackets,
-  // I2E:
-  // https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/YbhMyqLXXXo
-  kRtcStatsRelativePacketArrivalDelay,
-};
-
 // Certain stat members should only be exposed to the JavaScript API in
 // certain circumstances as to avoid passive fingerprinting.
 enum class StatExposureCriteria : uint8_t {
@@ -274,9 +259,6 @@ class RTCStatsMemberInterface {
   bool is_standardized() const {
     return exposure_criteria() != StatExposureCriteria::kNonStandard;
   }
-  // Non-standard stats members can have group IDs in order to be exposed in
-  // JavaScript through experiments. Standardized stats have no group IDs.
-  virtual std::vector<NonStandardGroupId> group_ids() const { return {}; }
   // The conditions for exposing the statistic to JavaScript. Stats with
   // criteria that is not kAlways has some restriction and should be filtered
   // in accordance to the spec.
@@ -512,22 +494,14 @@ class RTCNonStandardStatsMember
  public:
   explicit RTCNonStandardStatsMember(const char* name)
       : RTCRestrictedStatsBase(name) {}
-  RTCNonStandardStatsMember(const char* name,
-                            std::initializer_list<NonStandardGroupId> group_ids)
-      : RTCRestrictedStatsBase(name), group_ids_(group_ids) {}
   RTCNonStandardStatsMember(const char* name, const T& value)
       : RTCRestrictedStatsBase(name, value) {}
   RTCNonStandardStatsMember(const char* name, T&& value)
       : RTCRestrictedStatsBase(name, std::move(value)) {}
   RTCNonStandardStatsMember(const RTCNonStandardStatsMember<T>& other)
-      : RTCRestrictedStatsBase(other), group_ids_(other.group_ids_) {}
+      : RTCRestrictedStatsBase(other) {}
   RTCNonStandardStatsMember(RTCNonStandardStatsMember<T>&& other)
-      : RTCRestrictedStatsBase(std::move(other)),
-        group_ids_(std::move(other.group_ids_)) {}
-
-  std::vector<NonStandardGroupId> group_ids() const override {
-    return group_ids_;
-  }
+      : RTCRestrictedStatsBase(std::move(other)) {}
 
   T& operator=(const T& value) {
     return RTCRestrictedStatsMember<
@@ -541,7 +515,6 @@ class RTCNonStandardStatsMember
  private:
   using RTCRestrictedStatsBase =
       RTCRestrictedStatsMember<T, StatExposureCriteria::kNonStandard>;
-  std::vector<NonStandardGroupId> group_ids_;
 };
 
 extern template class RTC_EXPORT_TEMPLATE_DECLARE(RTC_EXPORT)
diff --git a/stats/rtc_stats_unittest.cc b/stats/rtc_stats_unittest.cc
index 84b9a63ed4..5e4b5f12a4 100644
--- a/stats/rtc_stats_unittest.cc
+++ b/stats/rtc_stats_unittest.cc
@@ -518,16 +518,6 @@ TEST(RTCStatsTest, RestrictedStatsTest) {
       << "These can not be equal as they have different exposure criteria.";
 }
 
-TEST(RTCStatsTest, NonStandardGroupId) {
-  auto group_id = NonStandardGroupId::kGroupIdForTesting;
-  RTCNonStandardStatsMember<int32_t> with_group_id("stat", {group_id});
-  std::vector<NonStandardGroupId> expected_ids({group_id});
-  EXPECT_EQ(expected_ids, with_group_id.group_ids());
-
-  RTCNonStandardStatsMember<int32_t> without_group_id("stat");
-  EXPECT_TRUE(without_group_id.group_ids().empty());
-}
-
 // Death tests.
 // Disabled on Android because death tests misbehave on Android, see
 // base/test/gtest_util.h.
diff --git a/stats/rtcstats_objects.cc b/stats/rtcstats_objects.cc
index adf3f8c18e..888a77b37e 100644
--- a/stats/rtcstats_objects.cc
+++ b/stats/rtcstats_objects.cc
@@ -481,16 +481,9 @@ RTCInboundRtpStreamStats::RTCInboundRtpStreamStats(std::string id,
       qp_sum("qpSum"),
       goog_timing_frame_info("googTimingFrameInfo"),
       power_efficient_decoder("powerEfficientDecoder"),
-      jitter_buffer_flushes(
-          "jitterBufferFlushes",
-          {NonStandardGroupId::kRtcAudioJitterBufferMaxPackets}),
-      delayed_packet_outage_samples(
-          "delayedPacketOutageSamples",
-          {NonStandardGroupId::kRtcAudioJitterBufferMaxPackets,
-           NonStandardGroupId::kRtcStatsRelativePacketArrivalDelay}),
-      relative_packet_arrival_delay(
-          "relativePacketArrivalDelay",
-          {NonStandardGroupId::kRtcStatsRelativePacketArrivalDelay}),
+      jitter_buffer_flushes("jitterBufferFlushes"),
+      delayed_packet_outage_samples("delayedPacketOutageSamples"),
+      relative_packet_arrival_delay("relativePacketArrivalDelay"),
       interruption_count("interruptionCount"),
       total_interruption_duration("totalInterruptionDuration"),
       min_playout_delay("minPlayoutDelay"),