[gtk+] scrolledwindow: Remove unneeded code

[Carlos Garnacho <carlosg src gnome org>]

commit e2c8d3c6808c6cf7e4f625d5d5eb984f924152ee
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Dec 16 19:22:41 2015 +0100

    scrolledwindow: Remove unneeded code
    
    We no longer take a grab here, no need to undo it on grab_notify

 gtk/gtkscrolledwindow.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index a85083e..5eaaf7f 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -4390,10 +4390,6 @@ gtk_scrolled_window_grab_notify (GtkWidget *widget,
       gtk_widget_device_is_shadowed (widget,
                                      priv->drag_device))
     {
-      gdk_device_ungrab (priv->drag_device,
-                         gtk_get_current_event_time ());
-      priv->drag_device = NULL;
-
       if (_gtk_scrolled_window_get_overshoot (scrolled_window, NULL, NULL))
         gtk_scrolled_window_start_deceleration (scrolled_window);
       else