diff --git a/modules/audio_device/audio_device_data_observer.cc b/modules/audio_device/audio_device_data_observer.cc
index 01f283f..877d8d9 100644
--- a/modules/audio_device/audio_device_data_observer.cc
+++ b/modules/audio_device/audio_device_data_observer.cc
@@ -10,7 +10,6 @@
 
 #include "modules/audio_device/include/audio_device_data_observer.h"
 
-#include "api/task_queue/global_task_queue_factory.h"
 #include "modules/audio_device/include/audio_device_defines.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/ref_counted_object.h"
@@ -282,13 +281,6 @@
 }  // namespace
 
 rtc::scoped_refptr<AudioDeviceModule> CreateAudioDeviceWithDataObserver(
-    const AudioDeviceModule::AudioLayer audio_layer,
-    AudioDeviceDataObserver* observer) {
-  return CreateAudioDeviceWithDataObserver(audio_layer,
-                                           &GlobalTaskQueueFactory(), observer);
-}
-
-rtc::scoped_refptr<AudioDeviceModule> CreateAudioDeviceWithDataObserver(
     AudioDeviceModule::AudioLayer audio_layer,
     TaskQueueFactory* task_queue_factory,
     AudioDeviceDataObserver* observer) {
diff --git a/modules/audio_device/include/audio_device_data_observer.h b/modules/audio_device/include/audio_device_data_observer.h
index 19b20de..14958ea 100644
--- a/modules/audio_device/include/audio_device_data_observer.h
+++ b/modules/audio_device/include/audio_device_data_observer.h
@@ -17,7 +17,6 @@
 #include "api/scoped_refptr.h"
 #include "api/task_queue/task_queue_factory.h"
 #include "modules/audio_device/include/audio_device.h"
-#include "rtc_base/deprecation.h"
 
 namespace webrtc {
 
@@ -41,12 +40,6 @@
   virtual ~AudioDeviceDataObserver() = default;
 };
 
-// TODO(bugs.webrtc.org/10284): Remove when unused.
-RTC_DEPRECATED
-rtc::scoped_refptr<AudioDeviceModule> CreateAudioDeviceWithDataObserver(
-    const AudioDeviceModule::AudioLayer audio_layer,
-    AudioDeviceDataObserver* observer);
-
 // Creates an ADM instance with AudioDeviceDataObserver registered.
 rtc::scoped_refptr<AudioDeviceModule> CreateAudioDeviceWithDataObserver(
     const AudioDeviceModule::AudioLayer audio_layer,