remove erronous line to set TFLAG_BYE

src/mod/endpoints/mod_sofia/sofia.c

@@ -6328,7 +6328,6 @@ void *SWITCH_THREAD_FUNC nightmare_xfer_thread_run(switch_thread_t *thread, void
 					mark_transfer_record(session, nhelper->bridge_to_uuid, tuuid_str);
 					switch_ivr_uuid_bridge(nhelper->bridge_to_uuid, tuuid_str);
 					switch_channel_set_variable(channel_a, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER");
-					sofia_set_flag_locked(tech_pvt, TFLAG_BYE);
 				} else {
 					switch_channel_hangup(switch_core_session_get_channel(tsession), SWITCH_CAUSE_ORIGINATOR_CANCEL);
 					status = SWITCH_STATUS_FALSE;