Merge "Remove unused BluetoothHearingAid methods from aidl"

    List<BluetoothDevice> getActiveDevices();

    boolean setConnectionPolicy(in BluetoothDevice device, int connectionPolicy);

    int getConnectionPolicy(in BluetoothDevice device);

    void adjustVolume(int direction);

    void setVolume(int volume);

    int getVolume();

    const int HI_SYNC_ID_INVALID = 0;

    long getHiSyncId(in BluetoothDevice device);