Complete move of TestADM into its own target

Bug: b/272350185, webrtc:15081
Change-Id: I1a7ffedae34790ed08c0205c713a650efd36273d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/302340
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39922}
diff --git a/modules/audio_device/BUILD.gn b/modules/audio_device/BUILD.gn
index eb5b8fb..260ac14 100644
--- a/modules/audio_device/BUILD.gn
+++ b/modules/audio_device/BUILD.gn
@@ -216,7 +216,6 @@
     ":audio_device_buffer",
     ":audio_device_default",
     ":audio_device_generic",
-    ":test_audio_device_module",
     "../../api:array_view",
     "../../api:make_ref_counted",
     "../../api:refcountedbase",
@@ -259,9 +258,6 @@
     "dummy/file_audio_device.cc",
     "dummy/file_audio_device.h",
     "include/fake_audio_device.h",
-
-    # TODO(crbug.com/webrtc/1510): remove when migrated on the new target
-    "include/test_audio_device.h",
   ]
 
   if (build_with_mozilla) {