Remove defunct calls to KAboutData::pluginData

The data is never registered so they always return nullptr. We might as well not pass it.

kcm/kcm.cpp

@@ -23,7 +23,7 @@ K_PLUGIN_FACTORY(KdeConnectKcmFactory, registerPlugin<KdeConnectKcm>();)
 static QString createId() { return QStringLiteral("kcm")+QString::number(QCoreApplication::applicationPid()); }
 
 KdeConnectKcm::KdeConnectKcm(QWidget* parent, const QVariantList& args)
-    : KCModule(KAboutData::pluginData(QStringLiteral("kdeconnect-kcm")), parent)
+    : KCModule(parent)
     , kcmUi(new Ui::KdeConnectKcmUi())
     , daemon(new DaemonDbusInterface(this))
     , devicesModel(new DevicesModel(this))

kcmplugin/kdeconnectpluginkcm.cpp

@@ -17,7 +17,7 @@ struct KdeConnectPluginKcmPrivate
 };
 
 KdeConnectPluginKcm::KdeConnectPluginKcm(QWidget* parent, const QVariantList& args, const QString& componentName)
-    : KCModule(KAboutData::pluginData(componentName), parent, args)
+    : KCModule(parent, args)
     , d(new KdeConnectPluginKcmPrivate())
 {