[gitg] Do not use robohash fallback

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 1f9a171c7683028ca014fe827fb4fd5345a2d948
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Tue Jul 1 11:09:04 2014 +0200

    Do not use robohash fallback

 libgitg/gitg-avatar-cache.vala |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/libgitg/gitg-avatar-cache.vala b/libgitg/gitg-avatar-cache.vala
index 7a71d5d..b8a349b 100644
--- a/libgitg/gitg-avatar-cache.vala
+++ b/libgitg/gitg-avatar-cache.vala
@@ -56,14 +56,6 @@ public class Gitg.AvatarCache : Object
 
                var pixbuf = yield read_avatar_from_file(id, gfile, cancellable);
 
-               if (pixbuf == null && (cancellable == null || !cancellable.is_cancelled()))
-               {
-                       gravatar = @"http://robohash.org/$(id).png?size=50x50";
-                       gfile = File.new_for_uri(gravatar);
-
-                       pixbuf = yield read_avatar_from_file(id, gfile, cancellable);
-               }
-
                d_cache[id] = pixbuf;
                return pixbuf;
        }