diff --git a/modules/rtp_rtcp/include/remote_ntp_time_estimator.h b/modules/rtp_rtcp/include/remote_ntp_time_estimator.h
index 9abad381af..e45ee39530 100644
--- a/modules/rtp_rtcp/include/remote_ntp_time_estimator.h
+++ b/modules/rtp_rtcp/include/remote_ntp_time_estimator.h
@@ -13,7 +13,6 @@
 
 #include <stdint.h>
 
-#include "absl/base/attributes.h"
 #include "absl/types/optional.h"
 #include "api/units/time_delta.h"
 #include "api/units/timestamp.h"
@@ -35,18 +34,8 @@ class RemoteNtpTimeEstimator {
   RemoteNtpTimeEstimator& operator=(const RemoteNtpTimeEstimator&) = delete;
   ~RemoteNtpTimeEstimator() = default;
 
-  // Updates the estimator with round trip time `rtt`, NTP seconds `ntp_secs`,
-  // NTP fraction `ntp_frac` and RTP timestamp `rtp_timestamp`.
-  ABSL_DEPRECATED(
-      "Use UpdateRtcpTimestamp with strict time types: TimeDelta and NtpTime.")
-  bool UpdateRtcpTimestamp(int64_t rtt,
-                           uint32_t ntp_secs,
-                           uint32_t ntp_frac,
-                           uint32_t rtp_timestamp) {
-    return UpdateRtcpTimestamp(TimeDelta::Millis(rtt),
-                               NtpTime(ntp_secs, ntp_frac), rtp_timestamp);
-  }
-
+  // Updates the estimator with round trip time `rtt` and
+  // new NTP time <-> RTP timestamp mapping from an RTCP sender report.
   bool UpdateRtcpTimestamp(TimeDelta rtt,
                            NtpTime sender_send_time,
                            uint32_t rtp_timestamp);
@@ -65,17 +54,6 @@ class RemoteNtpTimeEstimator {
   // Returns invalid NtpTime (i.e. NtpTime(0)) on failure.
   NtpTime EstimateNtp(uint32_t rtp_timestamp);
 
-  // Estimates the offset, in milliseconds, between the remote clock and the
-  // local one. This is equal to local NTP clock - remote NTP clock.
-  ABSL_DEPRECATED("Use EstimateRemoteToLocalClockOffset.")
-  absl::optional<int64_t> EstimateRemoteToLocalClockOffsetMs() {
-    if (absl::optional<int64_t> offset = EstimateRemoteToLocalClockOffset()) {
-      return std::round(static_cast<double>(*offset) * 1'000 /
-                        (int64_t{1} << 32));
-    }
-    return absl::nullopt;
-  }
-
   // Estimates the offset between the remote clock and the
   // local one. This is equal to local NTP clock - remote NTP clock.
   // The offset is returned in ntp time resolution, i.e. 1/2^32 sec ~= 0.2 ns.