cros: Remove system-level policy for audio capture allowed

chromeos/audio/audio_devices_pref_handler_stub.cc

Index: chromeos/audio/audio_devices_pref_handler_stub.cc
diff --git a/chromeos/audio/audio_devices_pref_handler_stub.cc b/chromeos/audio/audio_devices_pref_handler_stub.cc
index 84810aff2f10be07de22d68aa45c5dfc40c6d3ed..6c59877400083d3e808416d11ab286e4b352b819 100644
--- a/chromeos/audio/audio_devices_pref_handler_stub.cc
+++ b/chromeos/audio/audio_devices_pref_handler_stub.cc
@@ -45,10 +45,6 @@ void AudioDevicesPrefHandlerStub::SetMuteValue(const AudioDevice& device,
   audio_device_mute_map_[device.id] = mute_on;
 }
 
-bool AudioDevicesPrefHandlerStub::GetAudioCaptureAllowedValue() {
-  return true;
-}
-
 bool AudioDevicesPrefHandlerStub::GetAudioOutputAllowedValue() {
   return true;
 }