D18989: Remove minor duplicate code and fix related bug

[Carl Schwan]

ognarb created this revision.
Herald added a project: Calligra: 3.0.
Herald added a subscriber: Calligra-Devel-list.
ognarb requested review of this revision.

REVISION SUMMARY
  I forgot to change the icon size at one place in the last commit. Fix it and use a small function to avoid duplicate code and a similar bug in the futur.

REPOSITORY
  R8 Calligra

BRANCH
  dev

REVISION DETAIL
  https://phabricator.kde.org/D18989

AFFECTED FILES
  libs/widgets/KoModeBox.cpp
  libs/widgets/KoModeBox_p.h

To: ognarb
Cc: Calligra-Devel-list, dcaliste, cochise, vandenoever
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