Merge "don't call the reparent method when the old parent of task is removed."...

Merge "don't call the reparent method when the old parent of task is removed." into main am: 8ce3a826

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3446630



Change-Id: Ic2cc097689bd1aa2ffecc2625048c5bfd97dde67
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>