Don't double ack subscribes

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@825 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -3953,10 +3953,6 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
 			} else
 				ast_log(LOG_NOTICE, "Dunno anything about a %d %s response from %s\n", resp, rest, p->owner ? p->owner->name : inet_ntoa(p->sa.sin_addr));
 		}
-	} else {
-		if (p->subscribed) {
-		    /* Acknowledge sequence number */
-		    __sip_ack(p, seqno, 0);
 	} else {
 		if (sipdebug)
 			ast_verbose("Message is %s\n", msg);
@@ -3967,7 +3963,6 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
 			break;
 		}
 	}
-	}
 	if (owner)
 		ast_pthread_mutex_unlock(&owner->lock);
 	if (p)