[gtk+] gtkplacesidebar: remove obsolete drop state

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit a9b698b265f4b0c909b1baabc6b2c8bcec719a46
Author: Carlos Soriano <csoriano gnome org>
Date:   Thu Jun 11 18:55:24 2015 +0200

    gtkplacesidebar: remove obsolete drop state
    
    We didn't use those for some time now.

 gtk/gtkplacessidebar.c |   18 +++++-------------
 1 files changed, 5 insertions(+), 13 deletions(-)
---
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index 568d72d..a518d09 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -106,22 +106,14 @@
 #define TIMEOUT_EXPAND 500
 
 /* These are used when a destination-side DND operation is taking place.
- * Normally, when a file is being hovered directly over a bookmark,
- * we’ll be in DROP_STATE_NORMAL.
- *
- * But when a file is being hovered between bookmarks, this means the user
- * may want to create a new bookmark for that file between those bookmarks.
- * In that case, the drop state will be *not* DROP_STATE_NORMAL.
- *
- * When the drop state is FADING_OUT, it means that the user is hovering
- * directly over an existing bookmark and an immediate drop will cause the
- * file being dragged to be dropped on the bookmark, instead of causing
- * a new bookmark to be created.
+ * Normally, when a common drag action is taking place, the state will be
+ * DROP_STATE_NEW_BOOKMARK_ARMED, however, if the client of GtkPlacesSidebar
+ * wants to show hints about the valid targets, we sill set it as
+ * DROP_STATE_NEW_BOOKMARK_ARMED_PERMANENT, so the sidebar will show drop hints
+ * until the client says otherwise
  */
 typedef enum {
   DROP_STATE_NORMAL,
-  DROP_STATE_NEW_BOOKMARK_FADING_IN,
-  DROP_STATE_NEW_BOOKMARK_FADING_OUT,
   DROP_STATE_NEW_BOOKMARK_ARMED,
   DROP_STATE_NEW_BOOKMARK_ARMED_PERMANENT,
 } DropState;