Revert "Added app context to smart screen brightness."

This reverts commit 54478d9cab3634482b12e8a834db89ac4788437b.

Reason for revert: Broke work profile apps (http://b/122107873)

Bug: 111425369
Bug: 122107873
Change-Id: I7e3bf97725d542eb92a04bc75662ca6680287ba2
10 files changed