D10665: kcoreaddons_add_plugin: remove effectless OBJECT_DEPENDS on json file

[Aleix Pol Gonzalez]

apol added a comment.


  :P could you look into an actual fix? :/

REPOSITORY
  R244 KCoreAddons

REVISION DETAIL
  https://phabricator.kde.org/D10665

To: kossebau, #frameworks, apol
Cc: michaelh