Removes deprecated ADM APIs (reland)

Usage should now be removed and this change can be relanded.
It was reverted here: https://webrtc-review.googlesource.com/c/src/+/27200

NOTRY=TRUE
TBR=solenberg

Bug: webrtc:7306
Change-Id: I5191263e6cfd48952b59ff8f9af2e59c3e9eadef
Reviewed-on: https://webrtc-review.googlesource.com/29682
Commit-Queue: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21080}
diff --git a/modules/audio_device/include/audio_device.h b/modules/audio_device/include/audio_device.h
index c096a83..377a64c 100644
--- a/modules/audio_device/include/audio_device.h
+++ b/modules/audio_device/include/audio_device.h
@@ -1,4 +1,4 @@
-/*
+  /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
@@ -142,31 +142,10 @@
   virtual int32_t StereoRecordingIsAvailable(bool* available) const = 0;
   virtual int32_t SetStereoRecording(bool enable) = 0;
   virtual int32_t StereoRecording(bool* enabled) const = 0;
-  // TODO(bugs.webrtc.org/7306): deprecated.
-  virtual int32_t SetRecordingChannel(const ChannelType channel) { return -1; }
-  virtual int32_t RecordingChannel(ChannelType* channel) const { return -1; }
 
   // Playout delay
   virtual int32_t PlayoutDelay(uint16_t* delayMS) const = 0;
 
-  // TODO(bugs.webrtc.org/7306): deprecated (to be removed).
-  virtual int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) {
-    return -1;
-  }
-  virtual int32_t RecordingSampleRate(uint32_t* samplesPerSec) const {
-    return -1;
-  }
-  virtual int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) {
-    return -1;
-  }
-  virtual int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const {
-    return -1;
-  }
-
-  // TODO(bugs.webrtc.org/7306): deprecated (to be removed).
-  virtual int32_t SetLoudspeakerStatus(bool enable) { return -1; }
-  virtual int32_t GetLoudspeakerStatus(bool* enabled) const { return -1; }
-
   // Only supported on Android.
   virtual bool BuiltInAECIsAvailable() const = 0;
   virtual bool BuiltInAGCIsAvailable() const = 0;