[gtk+] dnd: Motif DnD is no longer supported, update docs.

[Christian Hergert <chergert src gnome org>]

commit a0bc600140a05c2537f9a2d83e2b58aacebe02ad
Author: Christian Hergert <christian hergert me>
Date:   Thu Aug 8 16:06:00 2013 +0200

    dnd: Motif DnD is no longer supported, update docs.

 gtk/gtkdnd.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index c48b003..dab4dfc 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -57,10 +57,7 @@
  * @Title: Drag and Drop
  *
  * GTK+ has a rich set of functions for doing inter-process
- * communication via the drag-and-drop metaphor. GTK+
- * can do drag-and-drop (DND) via multiple protocols.
- * The currently supported protocols are the Xdnd and
- * Motif protocols.
+ * communication via the drag-and-drop metaphor.
  *
  * As well as the functions listed here, applications
  * may need to use some facilities provided for