fix RelayMetricsRecorder-test with OSS jest version
fix RelayMetricsRecorder-test with OSS jest version

Summary: Not sure why this worked internally but not in OSS, but suspect it has to do with the jest version (?).
Closes https://github.com/facebook/relay/pull/452

Reviewed By: @yuzhi, @steveluscher

Differential Revision: D2532760

fb-gh-sync-id: 57913e2104a070f9d80d18c446f42679cf074c50

freiksenet/relay,wincent/relay,yungsters/relay,facebook/relay,voideanvalue/relay,andimarek/generic-relay,josephsavona/relay,zpao/relay,josephsavona/relay,chentsulin/relay,mroch/relay,atxwebs/relay,venepe/relay,xuorig/relay,kassens/relay,venepe/relay,josephsavona/relay,heracek/relay,benjaminogles/relay,cpojer/relay,andimarek/generic-relay,gabelevi/relay,yungsters/relay,cpojer/relay,chentsulin/relay,kassens/relay,michaelchum/relay,cesarandreu/relay,Shopify/relay,wincent/relay,zpao/relay,kassens/relay,zpao/relay,michaelchum/relay,voideanvalue/relay,wincent/relay,xuorig/relay,rosskevin/relay,atxwebs/relay,wincent/relay,wincent/relay,wincent/relay,apalm/relay,dbslone/relay,venepe/relay,atxwebs/relay,apalm/relay,kassens/relay,iamchenxin/relay,gabelevi/relay,cesarandreu/relay,Aweary/relay,rosskevin/relay,NevilleS/relay,voideanvalue/relay,chentsulin/relay,facebook/relay,mroch/relay,NevilleS/relay,NevilleS/relay,xuorig/relay,freiksenet/relay,voideanvalue/relay,iamchenxin/relay,Shopify/relay,gabelevi/relay,kassens/relay,kassens/relay,iamchenxin/relay,facebook/relay,xuorig/relay,xuorig/relay,cpojer/relay,facebook/relay,michaelchum/relay,iamchenxin/relay,Aweary/relay,cesarandreu/relay,chirag04/relay,andimarek/generic-relay,chirag04/relay,almasakchabayev/relay,freiksenet/relay,yungsters/relay,dbslone/relay,apalm/relay,heracek/relay,forter/generic-relay,benjaminogles/relay,benjaminogles/relay,xuorig/relay,facebook/relay,Aweary/relay,atxwebs/relay,voideanvalue/relay,Shopify/relay,facebook/relay,heracek/relay,almasakchabayev/relay,voideanvalue/relay,chirag04/relay,cpojer/relay,almasakchabayev/relay,mroch/relay