Merge "Revert "[Search][Motion] Separate AllApps scrim and content interpolation"" into sc-dev am: 1b195c9ff4 am: da65270450

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14316411

Change-Id: I9d213564f9e17b9284d9fcabb7d4363696d5daea