removed unnecessary oob_* properties in task.py
removed unnecessary oob_* properties in task.py

mwilliams3/disco,oldmantaiter/disco,ErikDubbelboer/disco,mwilliams3/disco,mozilla/disco,beni55/disco,pavlobaron/disco_playground,scrapinghub/disco,beni55/disco,mozilla/disco,pooya/disco,scrapinghub/disco,pombredanne/disco,oldmantaiter/disco,pombredanne/disco,ktkt2009/disco,seabirdzh/disco,ErikDubbelboer/disco,oldmantaiter/disco,pombredanne/disco,ErikDubbelboer/disco,pavlobaron/disco_playground,seabirdzh/disco,pooya/disco,mwilliams3/disco,scrapinghub/disco,ktkt2009/disco,oldmantaiter/disco,pooya/disco,discoproject/disco,mwilliams3/disco,mozilla/disco,pooya/disco,beni55/disco,pombredanne/disco,simudream/disco,mwilliams3/disco,pavlobaron/disco_playground,seabirdzh/disco,discoproject/disco,scrapinghub/disco,oldmantaiter/disco,simudream/disco,ErikDubbelboer/disco,ktkt2009/disco,beni55/disco,simudream/disco,beni55/disco,discoproject/disco,discoproject/disco,simudream/disco,ktkt2009/disco,ktkt2009/disco,pavlobaron/disco_playground,simudream/disco,ErikDubbelboer/disco,seabirdzh/disco,pombredanne/disco,discoproject/disco,mozilla/disco,seabirdzh/disco