Revert changes to clean.sh
Revert changes to clean.sh

Explicitly undoing previous changes to clean.sh; Adding a case insensitive check is neither desired nor nice to do in a both Mac and Linux friendly way.
the-dwyer/corefx,seanshpark/corefx,MaggieTsang/corefx,Ermiar/corefx,mazong1123/corefx,jlin177/corefx,DnlHarvey/corefx,ravimeda/corefx,alexperovich/corefx,nchikanov/corefx,twsouthwick/corefx,stephenmichaelf/corefx,the-dwyer/corefx,rjxby/corefx,lggomez/corefx,tijoytom/corefx,weltkante/corefx,weltkante/corefx,lggomez/corefx,richlander/corefx,shimingsg/corefx,mazong1123/corefx,nbarbettini/corefx,Petermarcu/corefx,JosephTremoulet/corefx,lggomez/corefx,yizhang82/corefx,ptoonen/corefx,ericstj/corefx,nchikanov/corefx,wtgodbe/corefx,dotnet-bot/corefx,ViktorHofer/corefx,weltkante/corefx,cydhaselton/corefx,elijah6/corefx,rjxby/corefx,ericstj/corefx,ptoonen/corefx,rjxby/corefx,parjong/corefx,Jiayili1/corefx,krytarowski/corefx,krk/corefx,elijah6/corefx,dhoehna/corefx,seanshpark/corefx,cydhaselton/corefx,Petermarcu/corefx,seanshpark/corefx,tijoytom/corefx,fgreinacher/corefx,zhenlan/corefx,stephenmichaelf/corefx,alexperovich/corefx,Jiayili1/corefx,rahku/corefx,richlander/corefx,nchikanov/corefx,marksmeltzer/corefx,weltkante/corefx,stephenmichaelf/corefx,tijoytom/corefx,twsouthwick/corefx,alexperovich/corefx,parjong/corefx,stone-li/corefx,lggomez/corefx,rahku/corefx,the-dwyer/corefx,Jiayili1/corefx,jlin177/corefx,lggomez/corefx,krk/corefx,krytarowski/corefx,rjxby/corefx,mmitche/corefx,ptoonen/corefx,krk/corefx,ptoonen/corefx,Ermiar/corefx,krk/corefx,tijoytom/corefx,gkhanna79/corefx,JosephTremoulet/corefx,elijah6/corefx,richlander/corefx,krytarowski/corefx,seanshpark/corefx,alexperovich/corefx,YoupHulsebos/corefx,krytarowski/corefx,nbarbettini/corefx,shimingsg/corefx,DnlHarvey/corefx,nbarbettini/corefx,shimingsg/corefx,Jiayili1/corefx,gkhanna79/corefx,DnlHarvey/corefx,Petermarcu/corefx,stone-li/corefx,Jiayili1/corefx,yizhang82/corefx,ravimeda/corefx,cydhaselton/corefx,Ermiar/corefx,stone-li/corefx,weltkante/corefx,ericstj/corefx,gkhanna79/corefx,ericstj/corefx,zhenlan/corefx,marksmeltzer/corefx,nbarbettini/corefx,marksmeltzer/corefx,rahku/corefx,ravimeda/corefx,krytarowski/corefx,cydhaselton/corefx,jlin177/corefx,nbarbettini/corefx,ravimeda/corefx,zhenlan/corefx,mmitche/corefx,stone-li/corefx,ptoonen/corefx,DnlHarvey/corefx,JosephTremoulet/corefx,cydhaselton/corefx,rubo/corefx,wtgodbe/corefx,Petermarcu/corefx,Ermiar/corefx,stephenmichaelf/corefx,rahku/corefx,mmitche/corefx,krk/corefx,wtgodbe/corefx,wtgodbe/corefx,jlin177/corefx,marksmeltzer/corefx,twsouthwick/corefx,twsouthwick/corefx,ViktorHofer/corefx,mmitche/corefx,the-dwyer/corefx,ViktorHofer/corefx,rubo/corefx,stone-li/corefx,ptoonen/corefx,mmitche/corefx,ravimeda/corefx,krytarowski/corefx,parjong/corefx,mazong1123/corefx,gkhanna79/corefx,dhoehna/corefx,mazong1123/corefx,alexperovich/corefx,rubo/corefx,axelheer/corefx,nbarbettini/corefx,krytarowski/corefx,mmitche/corefx,Petermarcu/corefx,yizhang82/corefx,richlander/corefx,seanshpark/corefx,ptoonen/corefx,richlander/corefx,weltkante/corefx,gkhanna79/corefx,ViktorHofer/corefx,seanshpark/corefx,billwert/corefx,ravimeda/corefx,JosephTremoulet/corefx,nchikanov/corefx,Jiayili1/corefx,alexperovich/corefx,zhenlan/corefx,wtgodbe/corefx,tijoytom/corefx,wtgodbe/corefx,JosephTremoulet/corefx,ericstj/corefx,stephenmichaelf/corefx,twsouthwick/corefx,axelheer/corefx,alexperovich/corefx,stone-li/corefx,billwert/corefx,ViktorHofer/corefx,rjxby/corefx,JosephTremoulet/corefx,zhenlan/corefx,krk/corefx,zhenlan/corefx,YoupHulsebos/corefx,dotnet-bot/corefx,ViktorHofer/corefx,BrennanConroy/corefx,Jiayili1/corefx,MaggieTsang/corefx,rjxby/corefx,billwert/corefx,seanshpark/corefx,MaggieTsang/corefx,billwert/corefx,richlander/corefx,MaggieTsang/corefx,parjong/corefx,yizhang82/corefx,nchikanov/corefx,dhoehna/corefx,the-dwyer/corefx,dotnet-bot/corefx,shimingsg/corefx,dhoehna/corefx,yizhang82/corefx,yizhang82/corefx,rahku/corefx,axelheer/corefx,dotnet-bot/corefx,mazong1123/corefx,krk/corefx,dhoehna/corefx,tijoytom/corefx,BrennanConroy/corefx,jlin177/corefx,twsouthwick/corefx,elijah6/corefx,YoupHulsebos/corefx,wtgodbe/corefx,fgreinacher/corefx,Petermarcu/corefx,shimingsg/corefx,MaggieTsang/corefx,rubo/corefx,rahku/corefx,jlin177/corefx,parjong/corefx,rahku/corefx,axelheer/corefx,YoupHulsebos/corefx,YoupHulsebos/corefx,YoupHulsebos/corefx,ViktorHofer/corefx,elijah6/corefx,shimingsg/corefx,DnlHarvey/corefx,the-dwyer/corefx,shimingsg/corefx,stephenmichaelf/corefx,nchikanov/corefx,the-dwyer/corefx,MaggieTsang/corefx,mazong1123/corefx,JosephTremoulet/corefx,elijah6/corefx,DnlHarvey/corefx,DnlHarvey/corefx,MaggieTsang/corefx,mmitche/corefx,jlin177/corefx,dotnet-bot/corefx,lggomez/corefx,axelheer/corefx,dotnet-bot/corefx,tijoytom/corefx,gkhanna79/corefx,mazong1123/corefx,nchikanov/corefx,elijah6/corefx,stephenmichaelf/corefx,ravimeda/corefx,twsouthwick/corefx,rubo/corefx,richlander/corefx,weltkante/corefx,fgreinacher/corefx,marksmeltzer/corefx,billwert/corefx,Ermiar/corefx,ericstj/corefx,Petermarcu/corefx,parjong/corefx,parjong/corefx,BrennanConroy/corefx,rjxby/corefx,gkhanna79/corefx,dhoehna/corefx,cydhaselton/corefx,Ermiar/corefx,marksmeltzer/corefx,axelheer/corefx,dhoehna/corefx,lggomez/corefx,cydhaselton/corefx,yizhang82/corefx,billwert/corefx,YoupHulsebos/corefx,dotnet-bot/corefx,zhenlan/corefx,billwert/corefx,nbarbettini/corefx,fgreinacher/corefx,stone-li/corefx,Ermiar/corefx,ericstj/corefx,marksmeltzer/corefx