D29574: Use KSERVICE_DEPRECATED_VERSION_BELATED

[Friedrich W. H. Kossebau]

kossebau added a dependency: D29573: ECMGenerateExportHeader: add generation of 
*_DEPRECATED_VERSION_BELATED().

REPOSITORY
  R309 KService

REVISION DETAIL
  https://phabricator.kde.org/D29574

To: kossebau, #frameworks, dfaure
Cc: kde-frameworks-devel, LeGast00n, cblack, michaelh, ngraham, bruns