Revert "Hearing Aid State Machine without native interface"

This reverts commit 3e1b61a6f8397046cb2a65e20ba251bfdf343444.

Reason for revert: Service shutdown not working
Bug: 74511352
Bug: 69623109
Test: Manual
Change-Id: I0a1a4d98104b7d7c0dac85464236b61cbb5a44a8

(cherry picked from commit 59d340a991edea214c63a3e657255e6cad572583)
(cherry picked from commit 7ed1048ed4ebc0ae6e29da9dee608c2a701dd82e)

Change-Id: I58c472b865f033308a60e308c233288e8faa2255