Plot1|2DFrame are stateless, StackedDataFrame switches between widgets that have been created at start up

GUI/View/Frame/Plot1DFrame.cpp

@@ -13,9 +13,6 @@
 //  ************************************************************************************************
 
 #include "GUI/View/Frame/Plot1DFrame.h"
-#include "Base/Util/Assert.h"
-#include "GUI/Model/Data/Data1DItem.h"
-#include "GUI/Model/Files/DatafileItem.h"
 #include "GUI/Model/Job/DataSource.h"
 #include "GUI/View/Canvas/SpecularDataCanvas.h"
 #include "GUI/View/Setup/AxisPanel.h"
@@ -37,11 +34,9 @@ void execContextMenu(const QPoint& point)
 } // namespace
 
 
-Plot1DFrame::Plot1DFrame(Data1DItem* item)
+Plot1DFrame::Plot1DFrame()
     : m_specular_canvas(new SpecularDataCanvas)
 {
-    ASSERT(item);
-
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
     auto* hlayout = new QHBoxLayout(this);