[evolution] Fix an unused variable warning.

[Matthew Barnes <mbarnes src gnome org>]

commit 8bead3f14e583c760947abd6c0c87d4c70516033
Author: Matthew Barnes <mbarnes redhat com>
Date:   Fri Jul 6 22:12:47 2012 -0400

    Fix an unused variable warning.

 mail/e-mail-ui-session.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/mail/e-mail-ui-session.c b/mail/e-mail-ui-session.c
index b9ecea1..37a5e50 100644
--- a/mail/e-mail-ui-session.c
+++ b/mail/e-mail-ui-session.c
@@ -540,7 +540,6 @@ mail_ui_session_constructed (GObject *object)
 	EMFolderTreeModel *folder_tree_model;
 	ESourceRegistry *registry;
 	EMailSession *session;
-	gulong handler_id;
 
 	session = E_MAIL_SESSION (object);