Remove default device selection logic that gives top priority to connected hearing aids.

Bug: 239888691
Test: m
Change-Id: Icaad511b02cd327d6fedd2933ce026924036410b
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index d67e6c4..7534984 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -276,10 +276,15 @@
         break;
 
     case STRATEGY_PHONE: {
-        devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_HEARING_AID);
-        if (!devices.isEmpty()) break;
+        // TODO(b/243670205): remove this logic that gives preference to last removable devices
+        // once a UX decision has been made
         devices = availableOutputDevices.getFirstDevicesFromTypes(
-                        getLastRemovableMediaDevices(GROUP_NONE, {AUDIO_DEVICE_OUT_BLE_HEADSET}));
+                        getLastRemovableMediaDevices(GROUP_NONE, {
+                            // excluding HEARING_AID and BLE_HEADSET because Dialer uses
+                            // setCommunicationDevice to select them explicitly
+                            AUDIO_DEVICE_OUT_HEARING_AID,
+                            AUDIO_DEVICE_OUT_BLE_HEADSET
+                            }));
         if (!devices.isEmpty()) break;
         devices = availableOutputDevices.getFirstDevicesFromTypes({
                 AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET, AUDIO_DEVICE_OUT_EARPIECE});