Simplify AButton...

... Don't need another constructor just to do conversions from wxImage to
ImageRoll, which can happen implicitly

src/widgets/AButton.cpp

@@ -193,24 +193,6 @@ int AButton::Listener::FilterEvent(wxEvent &event)
    return Event_Skip;
 }
 
-AButton::AButton(wxWindow * parent,
-                 wxWindowID id,
-                 const wxPoint & pos,
-                 const wxSize & size,
-                 wxImage up,
-                 wxImage over,
-                 wxImage down,
-                 wxImage overDown,
-                 wxImage dis,
-                 bool toggle):
-   wxWindow()
-{
-   Init(parent, id, pos, size,
-        ImageRoll(up), ImageRoll(over),
-        ImageRoll(down), ImageRoll(overDown), ImageRoll(dis),
-        toggle);
-}
-
 AButton::AButton(wxWindow * parent,
                  wxWindowID id,
                  const wxPoint & pos,

src/widgets/AButton.h

@@ -41,19 +41,6 @@ class AButton final : public wxWindow {
            ImageRoll dis,
            bool toggle);
 
-    // Construct button, specifying images (button up, highlight, button down,
-    // and disabled) for the default state
-   AButton(wxWindow * parent,
-           wxWindowID id,
-           const wxPoint & pos,
-           const wxSize & size,
-           wxImage up,
-           wxImage over,
-           wxImage down,
-           wxImage overDown,
-           wxImage dis,
-           bool toggle);
-
    virtual ~ AButton();
 
    // hide the inherited function that takes naked wxString: