D23772: Make less use of deprecated enum alias NET::StaysOnTop

[Vlad Zagorodniy]

zzag accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R278 KWindowSystem

BRANCH
  lessuseofstaysOnTop

REVISION DETAIL
  https://phabricator.kde.org/D23772

To: kossebau, #kwin, zzag
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns