Merge cherrypicks of ['googleplex-android-review.googlesource.com/21559188'] into tm-qpr2-release.

Change-Id: I0c2fde09b8a58e57e1d083daaed643673e6890ba
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 70349c2..21fa82e 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -1815,14 +1815,12 @@
 void AudioPolicyService::SensorPrivacyPolicy::registerSelf() {
     SensorPrivacyManager spm;
     mSensorPrivacyEnabled = spm.isSensorPrivacyEnabled();
-    (void)spm.addToggleSensorPrivacyListener(this);
     spm.addSensorPrivacyListener(this);
 }
 
 void AudioPolicyService::SensorPrivacyPolicy::unregisterSelf() {
     SensorPrivacyManager spm;
     spm.removeSensorPrivacyListener(this);
-    spm.removeToggleSensorPrivacyListener(this);
 }
 
 bool AudioPolicyService::SensorPrivacyPolicy::isSensorPrivacyEnabled() {