[ekiga] Removed unused and unimplemented api function in History::Book's private parts

[Julien Puydt <jpuydt src gnome org>]

commit b296d1536df5e80d8ff725681ea71054cdfe3077
Author: Julien Puydt <jpuydt free fr>
Date:   Tue Jul 3 09:09:36 2012 +0200

    Removed unused and unimplemented api function in History::Book's private parts

 lib/engine/components/call-history/history-book.h |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/lib/engine/components/call-history/history-book.h b/lib/engine/components/call-history/history-book.h
index 3ee4f98..c531b59 100644
--- a/lib/engine/components/call-history/history-book.h
+++ b/lib/engine/components/call-history/history-book.h
@@ -94,8 +94,6 @@ namespace History
 
     void add (xmlNodePtr node);
 
-    void common_add (Contact &contact);
-
     void on_missed_call (boost::shared_ptr<Ekiga::CallManager> manager,
 			 boost::shared_ptr<Ekiga::Call> call);