Remove a recursive lock of the manager session. This was pointed out by

zandbelt in issue #8711.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@52688 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -2130,9 +2130,7 @@ static void *session_do(void *data)
 	struct mansession *s = data;
 	int res;
 	
-	ast_mutex_lock(&s->__lock);
 	astman_append(s, "Asterisk Call Manager/1.0\r\n");
-	ast_mutex_unlock(&s->__lock);
 	for (;;) {
 		if ((res = do_message(s)) < 0)
 			break;