Summary:
There's nothing relevant in kdeglobals and loading it can lead to noise
when deleting groups that override a system default.
We still cascade which will allow kiosk keys to work as well as relevant
system defaults.
Import/Export is unchanged as that already uses SimpleConfig which
includes this flag.
I don't know if it will fix the relevant issue in the bug or just
reduce noise.
CCBUG: 402139
Test Plan: Compiled.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: zzag, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D17645
f3060723e1