RM6785: Cleanup audio packages

* audio_policy.stub, libaudiofoundation.vendor are unneeded
* libbluetooth_audio_session gets compiled along with audio.bluetooth.default
* libalsautils gets compiled along with audio.usb.default

Change-Id: I6f441eb907769e1c0db0ebef5eca74e75600d527
diff --git a/device.mk b/device.mk
index 8609e81..e463cef 100644
--- a/device.mk
+++ b/device.mk
@@ -41,12 +41,9 @@
     android.hardware.audio@6.0-impl \
     android.hardware.audio.effect@6.0-impl \
     android.hardware.bluetooth.audio-impl \
-    audio_policy.stub \
+    audio.bluetooth.default \
     audio.r_submix.default \
     audio.usb.default \
-    libalsautils \
-    libaudiofoundation.vendor \
-    libbluetooth_audio_session \
     libtinycompress \
     libtinyxml
 
@@ -59,7 +56,6 @@
 
 # Bluetooth
 PRODUCT_PACKAGES += \
-    audio.bluetooth.default \
     android.hardware.bluetooth@1.0.vendor
 
 # Camera