Merge "Remove HotseatEduActivity from AOSP" into sc-qpr1-dev am: b5a33b2d34 am: a19a807888 am: 89bf24b7b6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15748897

Change-Id: Idea5e55ac056bf0e87e04f30e6966e28975026c5