Action: Remove dead code
In the commit 8f59212a the signal engineInitialized() was semi-replaced with configFileChanged(), and the commit b4ee7b92 removed the infrastructure to set specific providerId and entryId properties. However, I can not find any evidence that a signal named initialized() ever existed in the QML Engine class.
Fixes the following error:
qrc:/qt/qml/org/kde/newstuff/Action.qml:129:68: QML Connections: Detected function "onInitialized" in Connections element. This is probably intended to be a signal handler but no signal of the target matches the name.