get rid of dummyGroup()

it was used only in extenders that don't exist anymore

src/plasma/private/service_p.h

@@ -73,28 +73,23 @@ class ServicePrivate
 {
 public:
     ServicePrivate(Service *service)
-        : q(service),
-          dummyConfig(0)
+        : q(service)
     {        
     }
 
     ~ServicePrivate()
     {
-        delete dummyConfig;
     }
 
     void associatedWidgetDestroyed(QObject *obj);
 
     void associatedItemDestroyed(QObject *obj);
 
-    KConfigGroup dummyGroup();
-
     Service *q;
     QString destination;
     QString name;
     QString resourcename;
     QMap<QString, QVariantMap> operationsMap;
-    KConfig *dummyConfig;
     QSet<QString> disabledOperations;
 };
 

src/plasma/service.cpp

@@ -168,15 +168,6 @@ Service::~Service()
     delete d;
 }
 
-KConfigGroup ServicePrivate::dummyGroup()
-{
-    if (!dummyConfig) {
-        dummyConfig = new KConfig(QString(), KConfig::SimpleConfig);
-    }
-
-    return KConfigGroup(dummyConfig, "DummyGroup");
-}
-
 void Service::setDestination(const QString &destination)
 {
     d->destination = destination;
@@ -259,9 +250,6 @@ void Service::setName(const QString &name)
     // now reset the config, which may be based on our name
     d->operationsMap.clear();
 
-    delete d->dummyConfig;
-    d->dummyConfig = 0;
-
     registerOperationsScheme();
 
     emit serviceReady(this);
@@ -291,9 +279,6 @@ void Service::setOperationsScheme(QIODevice *xml)
 {
     d->operationsMap.clear();
 
-    delete d->dummyConfig;
-    d->dummyConfig = 0;
-
     ConfigLoaderPrivate *configLoaderPrivate = new ConfigLoaderPrivate;
     configLoaderPrivate->setWriteDefaults(true);
     ConfigLoaderHandlerMap configLoaderHandler(0, configLoaderPrivate);