[gitg] No need property 'available' anymore

[Ignacio Casal Quinteiro <icq src gnome org>]

commit ceda5ffe3c7b4f44793bb2e9a24dd86c4816302f
Author: Techlive Zheng <techlivezheng gmail com>
Date:   Mon Jun 3 11:10:16 2013 +0800

    No need property 'available' anymore

 plugins/history/gitg-history-navigation.vala |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/plugins/history/gitg-history-navigation.vala b/plugins/history/gitg-history-navigation.vala
index 505b97a..1911f1d 100644
--- a/plugins/history/gitg-history-navigation.vala
+++ b/plugins/history/gitg-history-navigation.vala
@@ -275,11 +275,6 @@ namespace GitgHistory
                        get { return d_all; }
                }
 
-               public bool available
-               {
-                       get { return true; }
-               }
-
                public bool show_expanders
                {
                        get { return false; }