Revert^2 "[1/n] Camera Compat Freeform: per-app controls for disabling the treatment."

This reverts commit e31ce8587c3b60344dec069cb9c3bf43f42a6b99.

Reason for revert: Fixing a CTS test broken by the original change.

Test: atest WmTests:LetterboxUiControllerTest
Change-Id: Ief7e0445fed33fbb2b829be505db22532015df1c
3 files changed