fix sql error due to wrong field name (MODENDP-50)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6476 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia_presence.c

@@ -784,7 +784,7 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 		switch_mutex_lock(profile->ireg_mutex);
 
 		sql = switch_mprintf("delete from sip_subscriptions where "
-							 "proto='%q' and user='%q' and host='%q' and sub_to_user='%q' and sub_to_host='%q' and event='%q'",
+							 "proto='%q' and sip_user='%q' and sip_host='%q' and sub_to_user='%q' and sub_to_host='%q' and event='%q'",
 							 proto,
 							 from_user,
 							 from_host,