Gui: Removed unused method.

src/Gui/MainWindow.cpp

@@ -570,11 +570,6 @@ QMenu* MainWindow::createPopupMenu ()
     return menu;
 }
 
-void MainWindow::arrangeIcons()
-{
-    d->mdiArea->tileSubWindows();
-}
-
 void MainWindow::tile()
 {
     d->mdiArea->tileSubWindows();

src/Gui/MainWindow.h

@@ -214,10 +214,6 @@ public Q_SLOTS:
      * Sets text to the pane in the status bar.
      */
     void setPaneText(int i, QString text);
-    /**
-     * Arranges all child windows in a horizontal tile pattern.
-     */
-    void arrangeIcons();
     /**
      * Arranges all child windows in a tile pattern.
      */