Merge "Delete the delay for keeping tasksnapshot on screen." into sc-dev am: c56f67e7 am: dd810b3d am: c56e8ddb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14609912

Change-Id: Ifc778197b04b7f1cbae66ba128e8e88ccd9ab44d