D26363: [KCM/Activities] Clean unused code

[Méven Car]

meven created this revision.
meven added reviewers: ervin, Plasma.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
meven requested review of this revision.

REPOSITORY
  R119 Plasma Desktop

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D26363

AFFECTED FILES
  kcms/activities/CMakeLists.txt
  kcms/activities/ExtraActivitiesInterface.cpp
  kcms/activities/utils/dbusfuture_p.cpp
  kcms/activities/utils/dbusfuture_p.h

To: meven, ervin, #plasma
Cc: plasma-devel, LeGast00n, The-Feren-OS-Dev, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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