rem: rmv_from_timer_list( &(ses->tl) );
add: rmv_from_timer_list( &(ses->tl), ses_mgr.ses_timer );
context: AAAReturnCode AAASessionTimerStop( AAASessionId *sessionId ){	struct session *ses;	ses = sId2session( sessionId );	/* remove the sessoin from timer list */	rmv_from_timer_list( &(ses->tl) );	return AAA_ERR_SUCCESS;}