D10413: Only multiply the icon size if Qt isn't doing it already

[Marco Martin]

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

REPOSITORY
  R169 Kirigami

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D10413

To: apol, #kirigami, mart
Cc: plasma-devel, apol, davidedmundson, mart, hein