D8900: Simplify code now that we use the new-style connect

[Sven Brauch]

brauch accepted this revision.
brauch added a comment.
This revision is now accepted and ready to land.


  Technically it can fail, I think e.g. if ICore::self()->projectController() is null, but that doesn't happen of course. LGTM

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D8900

To: mwolff, brauch
Cc: brauch, kdevelop-devel
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