Revert "DO NOT MERGE - [ActivityManager] Ensure consistency behavior when a background activity brings another existed activity to front."

This reverts commit 6c05a853571078806a0ccac28c7da6d0259461fb.
Revert "[ActivityManager] Move top task to top in window manager"

This reverts commit 431d5abd4fcdf4cdee21159d116265b27d177631.