Merge "Disable splash screen for launches from widget." into sc-dev am: 97aaa6e5ae am: 84ec20af98

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15685202

Change-Id: Iaf93cd6b0f1fceba14c74264e2cc346d0cd03f03