Merge "Remove RecentsExtraCard plugin hook." into sc-v2-dev am: ba4b8e145d am: a3553ac013

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15936271

Change-Id: Ic3658840206e8a1ff6f8f9868209a219a82b47e2