D25548: [kcookiejar] Remove unneeded KService linkage

[Nicolas Fella]

nicolasfella added a reviewer: Frameworks.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D25548

To: nicolasfella, #frameworks
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns