video call: remove unused video config button bindings

Change-Id: I03de081748cf9342b887503e178360c02dcf154d

videooverlay.cpp

@@ -189,8 +189,3 @@ VideoOverlay::on_recButton_clicked()
         callModel->toggleAudioRecord(callId);
     }
 }
-
-void VideoOverlay::on_videoCfgBtn_clicked()
-{
-    emit videoCfgBtnClicked();
-}

videooverlay.h

@@ -53,7 +53,6 @@ private slots:
     void on_noMicButton_clicked();
     void on_noVideoButton_clicked();
     void on_recButton_clicked();
-    void on_videoCfgBtn_clicked();
 
 private:
     Ui::VideoOverlay* ui;
@@ -63,5 +62,4 @@ private:
 
 signals:
     void setChatVisibility(bool visible);
-    void videoCfgBtnClicked();
 };

videoview.cpp

@@ -66,7 +66,6 @@ VideoView::VideoView(QWidget* parent) :
     connect(overlay_, &VideoOverlay::setChatVisibility, [=](bool visible) {
         emit this->setChatVisibility(visible);
     });
-    connect(overlay_, &VideoOverlay::videoCfgBtnClicked, [=](){emit videoSettingsClicked();});
 
 }