FS-3444 revert

src/mod/endpoints/mod_sofia/sofia.c

@@ -5840,7 +5840,6 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 			switch_snprintf(st, sizeof(st), "%d", cause);
 			switch_channel_set_variable(channel, "sip_term_cause", st);
 			switch_channel_hangup(channel, cause);
-			ss_state = nua_callstate_terminated;
 		}