[glom] LayoutWidgetField: Remove unused get_has_original_data().

[Murray Cumming <murrayc src gnome org>]

commit 87f2e50fa363d5395e2fa088749638f36f28187a
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Mar 30 11:54:02 2016 +0200

    LayoutWidgetField: Remove unused get_has_original_data().
    
    Found by cppcheck.

 glom/utility_widgets/imageglom.cc         |    5 -----
 glom/utility_widgets/imageglom.h          |    1 -
 glom/utility_widgets/layoutwidgetfield.cc |    7 -------
 glom/utility_widgets/layoutwidgetfield.h  |    5 -----
 4 files changed, 0 insertions(+), 18 deletions(-)
---
diff --git a/glom/utility_widgets/imageglom.cc b/glom/utility_widgets/imageglom.cc
index fcae90f..4e2e1f0 100644
--- a/glom/utility_widgets/imageglom.cc
+++ b/glom/utility_widgets/imageglom.cc
@@ -221,11 +221,6 @@ AppWindow* ImageGlom::get_appwindow() const
   return dynamic_cast<AppWindow*>(pWindow);
 }
 
-bool ImageGlom::get_has_original_data() const
-{
-  return true; //TODO.
-}
-
 /*
 void ImageGlom::set_pixbuf(const Glib::RefPtr<Gdk::Pixbuf>& pixbuf)
 {
diff --git a/glom/utility_widgets/imageglom.h b/glom/utility_widgets/imageglom.h
index 6fa2b03..97f7b38 100644
--- a/glom/utility_widgets/imageglom.h
+++ b/glom/utility_widgets/imageglom.h
@@ -53,7 +53,6 @@ public:
 
   void set_value(const Gnome::Gda::Value& value) override;
   Gnome::Gda::Value get_value() const override;
-  bool get_has_original_data() const override;
 
   //Optionally use this instead of set_value(), to avoid creating an unnecessary Value.
   //void set_pixbuf(const Glib::RefPtr<Gdk::Pixbuf>& pixbuf);
diff --git a/glom/utility_widgets/layoutwidgetfield.cc b/glom/utility_widgets/layoutwidgetfield.cc
index 6b918cb..a40370c 100644
--- a/glom/utility_widgets/layoutwidgetfield.cc
+++ b/glom/utility_widgets/layoutwidgetfield.cc
@@ -33,11 +33,4 @@ LayoutWidgetField::type_signal_edited LayoutWidgetField::signal_edited()
   return m_signal_edited;
 }
 
-bool LayoutWidgetField::get_has_original_data() const
-{
-  //Most widgets always have the original data.
-  //Override this method for widgets that don't.
-  return true;
-}
-
 } //namespace Glom
diff --git a/glom/utility_widgets/layoutwidgetfield.h b/glom/utility_widgets/layoutwidgetfield.h
index 0b542f8..4d5455e 100644
--- a/glom/utility_widgets/layoutwidgetfield.h
+++ b/glom/utility_widgets/layoutwidgetfield.h
@@ -35,11 +35,6 @@ public:
 
   virtual Gnome::Gda::Value get_value() const = 0;
 
-  /** Whether this widget still has the original entered data, instead of just a representation.
-   * For instance, an image widget might only store a preview.
-   */
-  virtual bool get_has_original_data() const;
-
   typedef sigc::signal<void> type_signal_edited;
   type_signal_edited signal_edited();