revert StringBuilderCache.cs changes
revert StringBuilderCache.cs changes

Petermarcu/corefx,rahku/corefx,zhenlan/corefx,tijoytom/corefx,mmitche/corefx,ptoonen/corefx,krk/corefx,richlander/corefx,gkhanna79/corefx,krytarowski/corefx,stephenmichaelf/corefx,cydhaselton/corefx,Jiayili1/corefx,zhenlan/corefx,yizhang82/corefx,nchikanov/corefx,mmitche/corefx,ViktorHofer/corefx,gkhanna79/corefx,ptoonen/corefx,DnlHarvey/corefx,krk/corefx,MaggieTsang/corefx,Ermiar/corefx,mazong1123/corefx,JosephTremoulet/corefx,seanshpark/corefx,alexperovich/corefx,MaggieTsang/corefx,shimingsg/corefx,JosephTremoulet/corefx,krk/corefx,shmao/corefx,nchikanov/corefx,jlin177/corefx,jlin177/corefx,twsouthwick/corefx,gkhanna79/corefx,parjong/corefx,ericstj/corefx,alexperovich/corefx,elijah6/corefx,lggomez/corefx,tijoytom/corefx,krytarowski/corefx,dhoehna/corefx,ericstj/corefx,jlin177/corefx,zhenlan/corefx,MaggieTsang/corefx,fgreinacher/corefx,krytarowski/corefx,wtgodbe/corefx,ericstj/corefx,DnlHarvey/corefx,stone-li/corefx,DnlHarvey/corefx,shmao/corefx,lggomez/corefx,MaggieTsang/corefx,shmao/corefx,axelheer/corefx,shmao/corefx,nbarbettini/corefx,ViktorHofer/corefx,YoupHulsebos/corefx,twsouthwick/corefx,rubo/corefx,YoupHulsebos/corefx,JosephTremoulet/corefx,krk/corefx,cydhaselton/corefx,Petermarcu/corefx,the-dwyer/corefx,ptoonen/corefx,Ermiar/corefx,YoupHulsebos/corefx,gkhanna79/corefx,elijah6/corefx,axelheer/corefx,ravimeda/corefx,Ermiar/corefx,shmao/corefx,ravimeda/corefx,fgreinacher/corefx,elijah6/corefx,JosephTremoulet/corefx,richlander/corefx,gkhanna79/corefx,nbarbettini/corefx,Petermarcu/corefx,mmitche/corefx,stone-li/corefx,mazong1123/corefx,yizhang82/corefx,seanshpark/corefx,tijoytom/corefx,seanshpark/corefx,alexperovich/corefx,krk/corefx,parjong/corefx,BrennanConroy/corefx,shimingsg/corefx,DnlHarvey/corefx,ravimeda/corefx,YoupHulsebos/corefx,alexperovich/corefx,ViktorHofer/corefx,rahku/corefx,marksmeltzer/corefx,stephenmichaelf/corefx,rubo/corefx,billwert/corefx,parjong/corefx,alexperovich/corefx,MaggieTsang/corefx,marksmeltzer/corefx,seanshpark/corefx,yizhang82/corefx,dhoehna/corefx,ptoonen/corefx,MaggieTsang/corefx,dhoehna/corefx,twsouthwick/corefx,lggomez/corefx,weltkante/corefx,yizhang82/corefx,MaggieTsang/corefx,dotnet-bot/corefx,JosephTremoulet/corefx,mmitche/corefx,marksmeltzer/corefx,nchikanov/corefx,nbarbettini/corefx,YoupHulsebos/corefx,wtgodbe/corefx,rahku/corefx,stone-li/corefx,cydhaselton/corefx,marksmeltzer/corefx,DnlHarvey/corefx,dhoehna/corefx,dhoehna/corefx,mazong1123/corefx,wtgodbe/corefx,dotnet-bot/corefx,fgreinacher/corefx,mazong1123/corefx,the-dwyer/corefx,lggomez/corefx,stephenmichaelf/corefx,the-dwyer/corefx,rjxby/corefx,lggomez/corefx,nbarbettini/corefx,cydhaselton/corefx,dotnet-bot/corefx,rjxby/corefx,mazong1123/corefx,axelheer/corefx,stephenmichaelf/corefx,YoupHulsebos/corefx,rubo/corefx,ptoonen/corefx,mazong1123/corefx,weltkante/corefx,ericstj/corefx,rjxby/corefx,JosephTremoulet/corefx,ViktorHofer/corefx,Jiayili1/corefx,parjong/corefx,yizhang82/corefx,parjong/corefx,tijoytom/corefx,dotnet-bot/corefx,nbarbettini/corefx,Petermarcu/corefx,alexperovich/corefx,tijoytom/corefx,zhenlan/corefx,wtgodbe/corefx,Petermarcu/corefx,krytarowski/corefx,krytarowski/corefx,alexperovich/corefx,ptoonen/corefx,wtgodbe/corefx,mmitche/corefx,billwert/corefx,Jiayili1/corefx,twsouthwick/corefx,rjxby/corefx,jlin177/corefx,ViktorHofer/corefx,the-dwyer/corefx,stone-li/corefx,jlin177/corefx,dotnet-bot/corefx,tijoytom/corefx,nchikanov/corefx,Jiayili1/corefx,billwert/corefx,ravimeda/corefx,gkhanna79/corefx,shimingsg/corefx,dotnet-bot/corefx,mmitche/corefx,rjxby/corefx,nchikanov/corefx,BrennanConroy/corefx,mmitche/corefx,DnlHarvey/corefx,zhenlan/corefx,seanshpark/corefx,ericstj/corefx,ravimeda/corefx,nbarbettini/corefx,Jiayili1/corefx,billwert/corefx,rahku/corefx,parjong/corefx,YoupHulsebos/corefx,weltkante/corefx,stephenmichaelf/corefx,Jiayili1/corefx,DnlHarvey/corefx,gkhanna79/corefx,ravimeda/corefx,yizhang82/corefx,jlin177/corefx,krk/corefx,rubo/corefx,billwert/corefx,weltkante/corefx,krytarowski/corefx,weltkante/corefx,stone-li/corefx,Ermiar/corefx,jlin177/corefx,axelheer/corefx,zhenlan/corefx,marksmeltzer/corefx,dotnet-bot/corefx,rubo/corefx,ptoonen/corefx,marksmeltzer/corefx,JosephTremoulet/corefx,rahku/corefx,rjxby/corefx,stephenmichaelf/corefx,shmao/corefx,elijah6/corefx,the-dwyer/corefx,seanshpark/corefx,BrennanConroy/corefx,shimingsg/corefx,rjxby/corefx,ViktorHofer/corefx,the-dwyer/corefx,wtgodbe/corefx,Jiayili1/corefx,the-dwyer/corefx,axelheer/corefx,dhoehna/corefx,zhenlan/corefx,elijah6/corefx,elijah6/corefx,richlander/corefx,rahku/corefx,shimingsg/corefx,weltkante/corefx,rahku/corefx,billwert/corefx,mazong1123/corefx,billwert/corefx,krytarowski/corefx,fgreinacher/corefx,Petermarcu/corefx,ravimeda/corefx,richlander/corefx,stone-li/corefx,shmao/corefx,axelheer/corefx,twsouthwick/corefx,lggomez/corefx,ViktorHofer/corefx,Ermiar/corefx,cydhaselton/corefx,twsouthwick/corefx,weltkante/corefx,elijah6/corefx,stephenmichaelf/corefx,lggomez/corefx,Petermarcu/corefx,dhoehna/corefx,yizhang82/corefx,richlander/corefx,twsouthwick/corefx,ericstj/corefx,krk/corefx,nchikanov/corefx,shimingsg/corefx,seanshpark/corefx,tijoytom/corefx,stone-li/corefx,richlander/corefx,cydhaselton/corefx,parjong/corefx,Ermiar/corefx,Ermiar/corefx,nchikanov/corefx,cydhaselton/corefx,marksmeltzer/corefx,ericstj/corefx,shimingsg/corefx,nbarbettini/corefx,richlander/corefx,wtgodbe/corefx