Revert "Add SPEAKER_CLEANUP system usage"

Revert submission 30116824-spkr_cleanup

Reason for revert: DroidMonitor: Potential culprit for http://b/376600163 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.
Reverted changes: /q/submissionid:30116824-spkr_cleanup

Change-Id: Icfb6bf74568f76403b4ceab2952709238f2fc198
diff --git a/audio/aidl/default/config/audioPolicy/engine/api/current.txt b/audio/aidl/default/config/audioPolicy/engine/api/current.txt
index 1ba91e6..8e0e9a2 100644
--- a/audio/aidl/default/config/audioPolicy/engine/api/current.txt
+++ b/audio/aidl/default/config/audioPolicy/engine/api/current.txt
@@ -227,7 +227,6 @@
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_NOTIFICATION_EVENT;
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_SAFETY;
-    enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_SPEAKER_CLEANUP;
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_UNKNOWN;
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_VEHICLE_STATUS;
     enum_constant public static final android.audio.policy.engine.configuration.UsageEnumType AUDIO_USAGE_VIRTUAL_SOURCE;
diff --git a/audio/aidl/default/config/audioPolicy/engine/audio_policy_engine_configuration.xsd b/audio/aidl/default/config/audioPolicy/engine/audio_policy_engine_configuration.xsd
index 6422277..e2508ea 100644
--- a/audio/aidl/default/config/audioPolicy/engine/audio_policy_engine_configuration.xsd
+++ b/audio/aidl/default/config/audioPolicy/engine/audio_policy_engine_configuration.xsd
@@ -377,7 +377,6 @@
             <xs:enumeration value="AUDIO_USAGE_SAFETY" />
             <xs:enumeration value="AUDIO_USAGE_VEHICLE_STATUS" />
             <xs:enumeration value="AUDIO_USAGE_ANNOUNCEMENT" />
-            <xs:enumeration value="AUDIO_USAGE_SPEAKER_CLEANUP" />
         </xs:restriction>
     </xs:simpleType>