diff --git a/modules/audio_processing/aec3/main_filter_update_gain.cc b/modules/audio_processing/aec3/main_filter_update_gain.cc
index 6d31ed00c2..4f48cd4748 100644
--- a/modules/audio_processing/aec3/main_filter_update_gain.cc
+++ b/modules/audio_processing/aec3/main_filter_update_gain.cc
@@ -22,7 +22,6 @@ namespace webrtc {
 namespace {
 
 constexpr float kHErrorInitial = 10000.f;
-constexpr float kHErrorGainChange = 10000.f;
 constexpr int kPoorExcitationCounterInitial = 1000;
 
 }  // namespace
@@ -48,7 +47,7 @@ MainFilterUpdateGain::~MainFilterUpdateGain() {}
 void MainFilterUpdateGain::HandleEchoPathChange(
     const EchoPathVariability& echo_path_variability) {
   if (echo_path_variability.gain_change) {
-    H_error_.fill(kHErrorGainChange);
+    // TODO(bugs.webrtc.org/9526) Handle gain changes.
   }
 
   if (echo_path_variability.delay_change !=
diff --git a/modules/audio_processing/aec3/subtractor.cc b/modules/audio_processing/aec3/subtractor.cc
index b2fc993f48..609e8ac7ed 100644
--- a/modules/audio_processing/aec3/subtractor.cc
+++ b/modules/audio_processing/aec3/subtractor.cc
@@ -153,8 +153,6 @@ void Subtractor::HandleEchoPathChange(
   }
 
   if (echo_path_variability.gain_change && enable_agc_gain_change_response_) {
-    RTC_LOG(LS_WARNING) << "Resetting main filter adaptation speed due to "
-                           "microphone gain change";
     G_main_.HandleEchoPathChange(echo_path_variability);
   }
 }