D7956: Drop unused functions from utils

[Martin Flöser]

graesslin created this revision.
graesslin added reviewers: KWin, Plasma.
Restricted Application added a project: KWin.
Restricted Application added subscribers: kwin, plasma-devel.

REVISION SUMMARY
  Not used anywhere in KWin -> can go.

TEST PLAN
  Still compiles

REPOSITORY
  R108 KWin

BRANCH
  utils-drop-dead-functions

REVISION DETAIL
  https://phabricator.kde.org/D7956

AFFECTED FILES
  utils.cpp
  utils.h

To: graesslin, #kwin, #plasma
Cc: plasma-devel, kwin, bwowk, ZrenBot, progwolff, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol, mart
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