Remove unneeded implementation of configModules method

The plugins are now loaded from a specific namespace

src/kontactplugin/kmail/summarywidget.cpp

@@ -219,8 +219,3 @@ bool SummaryWidget::eventFilter(QObject *obj, QEvent *e)
 
     return KontactInterface::Summary::eventFilter(obj, e);
 }
-
-QStringList SummaryWidget::configModules() const
-{
-    return QStringList() << QStringLiteral("kcmkmailsummary.desktop");
-}

src/kontactplugin/kmail/summarywidget.h

@@ -42,8 +42,6 @@ public:
 
     Q_REQUIRED_RESULT int summaryHeight() const override;
 
-    Q_REQUIRED_RESULT QStringList configModules() const override;
-
 protected:
     bool eventFilter(QObject *obj, QEvent *e) override;
 

src/kontactplugin/summary/summaryview_part.cpp

@@ -422,26 +422,6 @@ void SummaryViewPart::slotConfigure()
     delete dlg;
 }
 
-QStringList SummaryViewPart::configModules() const
-{
-    QStringList modules;
-
-    QMap<QString, KontactInterface::Summary *>::ConstIterator it;
-    QMap<QString, KontactInterface::Summary *>::ConstIterator end(mSummaries.constEnd());
-    for (it = mSummaries.constBegin(); it != end; ++it) {
-        QStringList cm = it.value()->configModules();
-        QStringList::ConstIterator strIt;
-        QStringList::ConstIterator strEnd(cm.constEnd());
-        for (strIt = cm.constBegin(); strIt != strEnd; ++strIt) {
-            if (!(*strIt).isEmpty() && !modules.contains(*strIt)) {
-                modules.append(*strIt);
-            }
-        }
-    }
-
-    return modules;
-}
-
 void SummaryViewPart::initGUI(KontactInterface::Core *core)
 {
     auto sa = new QScrollArea(core);

src/kontactplugin/summary/summaryview_part.h

@@ -60,7 +60,6 @@ private:
     void saveLayout();
     QString widgetName(QWidget *) const;
 
-    QStringList configModules() const;
     void drawLtoR(QWidget *target, QWidget *widget, int alignment);
     void drawRtoL(QWidget *target, QWidget *widget, int alignment);