Merge "Remove HotseatEduActivity from AOSP" into sc-v2-dev am: d74703d63d am: 5cabd79737

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15729849

Change-Id: Ic9b8667f2e42a1874586813c0f5dad504f8b2fe0