Revert "Bug 1027438 - [LockScreen][System] Change the old locking events with new window events > remove something missed and fork the event"

This reverts commit 7abe707abb22d3d72752e8d9f730f14a7eb1a7ae.
Merge pull request #21179 from vingtetun/backout-bug1027438

Revert "Bug 1027438 - [LockScreen][System] Change the old locking events...