[folks] Add a missing signal disconnection to Tp.Backend

[Philip Withnall <pwithnall src gnome org>]

commit 8e555864fd37e9efb967768fd9b5dc512e7059ce
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Apr 22 22:02:59 2011 +0100

    Add a missing signal disconnection to Tp.Backend
    
    Helps: bgo#645186

 backends/telepathy/tp-backend.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/backends/telepathy/tp-backend.vala b/backends/telepathy/tp-backend.vala
index 809372b..9ff9194 100644
--- a/backends/telepathy/tp-backend.vala
+++ b/backends/telepathy/tp-backend.vala
@@ -149,6 +149,7 @@ public class Folks.Backends.Tp.Backend : Folks.Backend
 
   private void _store_removed_cb (PersonaStore store)
     {
+      store.removed.disconnect (this._store_removed_cb);
       this.persona_store_removed (store);
       this._persona_stores.unset (store.id);
       this.notify_property ("persona-stores");