[evolution-data-server] Revert one change from the previous commit, it emitted incorrect warnings

[Milan Crha <mcrha src gnome org>]

commit be9f61c3fd6b5ddb40f98f39bb886de4d2a8c9c7
Author: Milan Crha <mcrha redhat com>
Date:   Tue Feb 14 13:10:34 2012 +0100

    Revert one change from the previous commit, it emitted incorrect warnings

 camel/camel-session.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/camel/camel-session.c b/camel/camel-session.c
index daf8d8f..ace0551 100644
--- a/camel/camel-session.c
+++ b/camel/camel-session.c
@@ -141,7 +141,7 @@ session_finish_job_cb (CamelSession *session,
 	JobData *job_data;
 	GError *error = NULL;
 
-	g_warn_if_fail (g_simple_async_result_propagate_error (simple, &error));
+	g_simple_async_result_propagate_error (simple, &error);
 	job_data = g_simple_async_result_get_op_res_gpointer (simple);
 
 	g_signal_emit (