Revert "Introduce BLE advertiser wrapper for unit tests."

This reverts commit e7a349bec4453e7d482b8cef0aa31107317be931.

Reason for revert: broke the build in b/435385483.

Low-Coverage-Reason: This change reverted the previous broken change and will not change testing coverage.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:89cdb62c324a0fbfebe8e31ed064d836ae99a1f7)
Merged-In: Ifcef4eca52f7a952127ad628627afa3d24248bf4
Change-Id: Ifcef4eca52f7a952127ad628627afa3d24248bf4
6 files changed