Revert "Update sysui flags on swipe, skip task backgrounds on opaque apps"

This reverts commit 5dd46d51eda6e26830c994e9a0581d57316beb51.

Reason for revert: Temporary revert until ag/4040557 goes in

Change-Id: Iab2c747a99e1fb1cc5a91787dbf185df77f791b4
5 files changed