Revert "Hearing Aid Service Stub"

This reverts commit 06801a47fb65c132f9a923522f6b68c86c491d70.

Reason for revert: Service shutdown not working
Bug: 74511352
Bug: 69623109
Test: Manual
Merged-In: I1c707871074deb8cdd83fdc489c493be9c888267
Change-Id: I54fccb1378a96656e7b4df2df3d9d96594499a9d
4 files changed