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
Merged-In: Id763ef074c6ee8d3b83d828c960cd094849684b1
Change-Id: I0a1a4d98104b7d7c0dac85464236b61cbb5a44a8
3 files changed