D19383: remove kpackage_install_package deprecation warning

[Aleix Pol Gonzalez]

apol added a comment.


  I'd like to see this documented somewhere.

REPOSITORY
  R290 KPackage

REVISION DETAIL
  https://phabricator.kde.org/D19383

To: sitter, mart
Cc: apol, kde-frameworks-devel, michaelh, ngraham, bruns