Revert "Make Activites touch opaque - DO NOT MERGE"
This reverts commit 22261fa6.
Reason for revert: Re-release due to functional regression
Change-Id: I9ca1fa2f140d640159fabec1424c52867cf01a60
(cherry picked from commit 23bf0bda)
Merged-In: I9ca1fa2f140d640159fabec1424c52867cf01a60