Deprecate KRun KIO plugin
This is not used anywhere in the KDE code. Usually Qt.openUrlExternally is used or the KIO jobs are used on the C++ side of things. Considering that I don't think it makes sense to provide categorized logging for the deprecation warning.
Task: https://phabricator.kde.org/T12119
@kossebau Is this okay regarding the deprecation message, considering that the plugin is unused? IMHO using categorized logging would be overkill here.