diff --git a/src/plugins/diffeditor/sidebysidediffeditorwidget.cpp b/src/plugins/diffeditor/sidebysidediffeditorwidget.cpp
index a00f54d9430..5d93f0f269b 100644
--- a/src/plugins/diffeditor/sidebysidediffeditorwidget.cpp
+++ b/src/plugins/diffeditor/sidebysidediffeditorwidget.cpp
@@ -877,11 +877,6 @@ void SideBySideDiffEditorWidget::setDiffEditorGuiController(
     }
 }
 
-DiffEditorGuiController *SideBySideDiffEditorWidget::diffEditorGuiController() const
-{
-    return m_guiController;
-}
-
 void SideBySideDiffEditorWidget::clear(const QString &message)
 {
     const bool oldIgnore = m_ignoreCurrentIndexChange;
diff --git a/src/plugins/diffeditor/sidebysidediffeditorwidget.h b/src/plugins/diffeditor/sidebysidediffeditorwidget.h
index 259a27158c7..2d21efcaeeb 100644
--- a/src/plugins/diffeditor/sidebysidediffeditorwidget.h
+++ b/src/plugins/diffeditor/sidebysidediffeditorwidget.h
@@ -58,7 +58,6 @@ public:
     explicit SideBySideDiffEditorWidget(QWidget *parent = 0);
 
     void setDiffEditorGuiController(DiffEditorGuiController *controller);
-    DiffEditorGuiController *diffEditorGuiController() const;
 
 private slots:
     void clear(const QString &message = QString());
diff --git a/src/plugins/diffeditor/unifieddiffeditorwidget.cpp b/src/plugins/diffeditor/unifieddiffeditorwidget.cpp
index aa7f7fee93c..5e03a7fb2fb 100644
--- a/src/plugins/diffeditor/unifieddiffeditorwidget.cpp
+++ b/src/plugins/diffeditor/unifieddiffeditorwidget.cpp
@@ -165,11 +165,6 @@ void UnifiedDiffEditorWidget::restoreStateRequested()
     m_state.clear();
 }
 
-DiffEditorGuiController *UnifiedDiffEditorWidget::diffEditorGuiController() const
-{
-    return m_guiController;
-}
-
 void UnifiedDiffEditorWidget::setDisplaySettings(const DisplaySettings &ds)
 {
     DisplaySettings settings = displaySettings();
diff --git a/src/plugins/diffeditor/unifieddiffeditorwidget.h b/src/plugins/diffeditor/unifieddiffeditorwidget.h
index 8655d7cc212..0ba3e3282db 100644
--- a/src/plugins/diffeditor/unifieddiffeditorwidget.h
+++ b/src/plugins/diffeditor/unifieddiffeditorwidget.h
@@ -60,7 +60,6 @@ public:
     UnifiedDiffEditorWidget(QWidget *parent = 0);
 
     void setDiffEditorGuiController(DiffEditorGuiController *controller);
-    DiffEditorGuiController *diffEditorGuiController() const;
 
 public slots:
     void setDisplaySettings(const TextEditor::DisplaySettings &ds);