Merge "Revert "Hide non-system overlay window on ActivityPicker"" into pi-dev am: bcc7f89f85 am: 89d14a36dc am: 30ab86df65

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/14103366

Change-Id: I5a1cc56ebca9f1f9dc289a4622b4db22a62a6f73