diff --git a/modules/audio_processing/aec3/aec_state.h b/modules/audio_processing/aec3/aec_state.h
index a572856787..5d12226ff4 100644
--- a/modules/audio_processing/aec3/aec_state.h
+++ b/modules/audio_processing/aec3/aec_state.h
@@ -283,7 +283,6 @@ class AecState {
   size_t blocks_with_active_render_ = 0;
   bool capture_signal_saturation_ = false;
   FilterAnalyzer filter_analyzer_;
-  absl::optional<DelayEstimate> external_delay_;
   EchoAudibility echo_audibility_;
   ReverbModelEstimator reverb_model_estimator_;
   ReverbModel avg_render_reverb_;
diff --git a/modules/audio_processing/aec3/aec_state_unittest.cc b/modules/audio_processing/aec3/aec_state_unittest.cc
index 67ed5840c6..c9db8bdb36 100644
--- a/modules/audio_processing/aec3/aec_state_unittest.cc
+++ b/modules/audio_processing/aec3/aec_state_unittest.cc
@@ -92,7 +92,7 @@ void RunNormalUsageTest(size_t num_render_channels,
     subtractor_output[ch].ComputeMetrics(y[ch]);
   }
   state.HandleEchoPathChange(EchoPathVariability(
-      false, EchoPathVariability::DelayAdjustment::kBufferReadjustment, false));
+      false, EchoPathVariability::DelayAdjustment::kNewDetectedDelay, false));
   state.Update(delay_estimate, converged_filter_frequency_response,
                impulse_response, *render_delay_buffer->GetRenderBuffer(),
                E2_refined, Y2, subtractor_output);
diff --git a/modules/audio_processing/aec3/echo_path_variability.h b/modules/audio_processing/aec3/echo_path_variability.h
index adf0d7a4ad..78e4f64b2b 100644
--- a/modules/audio_processing/aec3/echo_path_variability.h
+++ b/modules/audio_processing/aec3/echo_path_variability.h
@@ -16,9 +16,7 @@ namespace webrtc {
 struct EchoPathVariability {
   enum class DelayAdjustment {
     kNone,
-    kBufferReadjustment,
     kBufferFlush,
-    kDelayReset,
     kNewDetectedDelay
   };