remove unused function

not needed after ddf6f38

src/caja-side-pane.c

@@ -178,31 +178,6 @@ panel_item_activate_callback (GtkMenuItem *item,
    select_panel (side_pane, panel);
}


static void
menu_position_under (GtkMenu *menu,
                     int *x,
                     int *y,
                     gboolean *push_in,
                     gpointer user_data)
{
    GtkWidget *widget;
    GtkAllocation allocation;

    g_return_if_fail (GTK_IS_BUTTON (user_data));
    g_return_if_fail (!gtk_widget_get_has_window (GTK_WIDGET (user_data)));

    widget = GTK_WIDGET (user_data);

    gdk_window_get_origin (gtk_widget_get_window (widget), x, y);
    gtk_widget_get_allocation (widget, &allocation);

    *x += allocation.x;
    *y += allocation.y + allocation.height;

    *push_in = FALSE;
}

static gboolean
select_button_press_callback (GtkWidget *widget,
                              GdkEventButton *event,