Fixes: remove unneded declaration

src/plugins/coreplugin/welcomemode.h

@@ -41,7 +41,6 @@
 QT_BEGIN_NAMESPACE
 class QWidget;
 class QUrl;
-class QLabel;
 QT_END_NAMESPACE
 
 namespace Core {
@@ -77,8 +76,7 @@ public:
     const char* uniqueModeName() const;
     QList<int> context() const;
     void activated();
-    QString contextHelpId() const
-    { return QLatin1String("Qt Creator"); }
+    QString contextHelpId() const { return QLatin1String("Qt Creator"); }
 
 signals:
     void requestProject(const QString &project);