remove old flow workaround
remove old flow workaround

Reviewed By: leebyron

Differential Revision: D4922582

fbshipit-source-id: 73ee12fc336142eac38b43bc95c9e84d3da3c9ab

yungsters/relay,wincent/relay,rosskevin/relay,cpojer/relay,facebook/relay,kassens/relay,josephsavona/relay,facebook/relay,atxwebs/relay,xuorig/relay,voideanvalue/relay,voideanvalue/relay,iamchenxin/relay,atxwebs/relay,voideanvalue/relay,facebook/relay,facebook/relay,wincent/relay,cpojer/relay,yungsters/relay,xuorig/relay,yungsters/relay,kassens/relay,facebook/relay,atxwebs/relay,freiksenet/relay,kassens/relay,iamchenxin/relay,josephsavona/relay,kassens/relay,dbslone/relay,chirag04/relay,josephsavona/relay,kassens/relay,benjaminogles/relay,chentsulin/relay,zpao/relay,benjaminogles/relay,voideanvalue/relay,xuorig/relay,xuorig/relay,zpao/relay,chirag04/relay,chentsulin/relay,voideanvalue/relay,benjaminogles/relay,apalm/relay,atxwebs/relay,zpao/relay,chentsulin/relay,wincent/relay,voideanvalue/relay,wincent/relay,freiksenet/relay,kassens/relay,chirag04/relay,cpojer/relay,xuorig/relay,iamchenxin/relay,wincent/relay,rosskevin/relay,iamchenxin/relay,dbslone/relay,apalm/relay,freiksenet/relay,apalm/relay,cpojer/relay,facebook/relay,wincent/relay,xuorig/relay