Revert "Do not do anything special to system bars when dispatching insets"

This reverts commit a6e5b8c8b173dad23ca7589d82809725ae190308.

Reason for revert: The CL is causing a Launcher test break, see b/257090915

Change-Id: I0c61d4d6e4376d2a34dafe0570ce1e82566f61e8
2 files changed