Merge "Remove enable_pip_keep_clear_algorithm flag" into udc-qpr-dev am: 4573658e am: 79b7a174

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/24447708



Change-Id: I8c733e80d68039714979d1181573a8dc032f2bfc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>