Qt5 remove unused Qt5Menu::setFrameSignal

Change-Id: Iead091fee3b6c72d610f42598edb7cbb681d0cd4
Reviewed-on: https://gerrit.libreoffice.org/71870
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

vcl/inc/qt5/Qt5Menu.hxx

@@ -73,9 +73,6 @@ public:
     unsigned GetItemCount() { return maItems.size(); }
     Qt5MenuItem* GetItemAtPos(unsigned nPos) { return maItems[nPos]; }
 
-Q_SIGNALS:
-    void setFrameSignal(const SalFrame* pFrame);
-
 private slots:
     static void slotMenuTriggered(Qt5MenuItem* pQItem);
     static void slotMenuAboutToShow(Qt5MenuItem* pQItem);

vcl/qt5/Qt5Menu.cxx

@@ -29,7 +29,6 @@ Qt5Menu::Qt5Menu(bool bMenuBar)
     , mpQMenuBar(nullptr)
     , mpQMenu(nullptr)
 {
-    connect(this, &Qt5Menu::setFrameSignal, this, &Qt5Menu::SetFrame, Qt::BlockingQueuedConnection);
 }
 
 bool Qt5Menu::VisibleMenuBar() { return true; }