Merge "Remove HotseatEduActivity from AOSP" into sc-qpr1-dev am: b5a33b2d34 am: f6542d4e64 am: 8788f72cdf

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

Change-Id: Ie0a4482c1ee77a86d56eef21b69b719f1b4d7896