Revert "hal: Updated DEVICE_IN_PROXY definition"

This reverts commit b339fdf6518820d08628eaa783dcefe939ffa6bf.
Updated device_in_proxy definition in audio.h in consistent with
LA, so this change is no more needed.

CRs-Fixed: 2025113
Change-Id: I239f955f90175a7004a5ec786c5e848f47f7d544
1 file changed