D11846: KColorButtonTest: remove todo code

[Christoph Feck]

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

REPOSITORY
  R236 KWidgetsAddons

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D11846

To: aacid, cfeck
Cc: #frameworks, michaelh, ngraham