Removes unused log_path method.
Removes unused log_path method.

humdings/zipline,aajtodd/zipline,florentchandelier/zipline,wilsonkichoi/zipline,ronalcc/zipline,nborggren/zipline,keir-rex/zipline,gwulfs/zipline,enigmampc/catalyst,YuepengGuo/zipline,bartosh/zipline,wubr2000/zipline,stkubr/zipline,florentchandelier/zipline,bartosh/zipline,otmaneJai/Zipline,joequant/zipline,jordancheah/zipline,enigmampc/catalyst,dhruvparamhans/zipline,DVegaCapital/zipline,chrjxj/zipline,ChinaQuants/zipline,MonoCloud/zipline,morrisonwudi/zipline,Scapogo/zipline,ronalcc/zipline,euri10/zipline,ChinaQuants/zipline,dmitriz/zipline,wilsonkichoi/zipline,sketchytechky/zipline,chrjxj/zipline,wubr2000/zipline,quantopian/zipline,gwulfs/zipline,alphaBenj/zipline,alphaBenj/zipline,AlirezaShahabi/zipline,keir-rex/zipline,AlirezaShahabi/zipline,otmaneJai/Zipline,MonoCloud/zipline,iamkingmaker/zipline,jordancheah/zipline,dhruvparamhans/zipline,humdings/zipline,michaeljohnbennett/zipline,semio/zipline,CarterBain/AlephNull,iamkingmaker/zipline,davidastephens/zipline,nborggren/zipline,kmather73/zipline,zhoulingjun/zipline,erikness/AlephOne,cmorgan/zipline,StratsOn/zipline,aajtodd/zipline,stkubr/zipline,CarterBain/AlephNull,dkushner/zipline,cmorgan/zipline,zhoulingjun/zipline,jimgoo/zipline-fork,erikness/AlephOne,jimgoo/zipline-fork,davidastephens/zipline,Scapogo/zipline,CDSFinance/zipline,umuzungu/zipline,umuzungu/zipline,CDSFinance/zipline,dkushner/zipline,grundgruen/zipline,magne-max/zipline-ja,kmather73/zipline,semio/zipline,joequant/zipline,michaeljohnbennett/zipline,quantopian/zipline,mattcaldwell/zipline,grundgruen/zipline,DVegaCapital/zipline,morrisonwudi/zipline,sketchytechky/zipline,YuepengGuo/zipline,dmitriz/zipline,mattcaldwell/zipline,magne-max/zipline-ja,StratsOn/zipline,euri10/zipline