Remove dependency on babel-core
Remove dependency on babel-core

Summary: The only runtime dependency of `babel-relay-plugin` is now `graphql` (can move `babel-core` to a dev dependency).

Reviewed By: yungsters

Differential Revision: D2683393

fb-gh-sync-id: b47afe6489a93c0e391133f0fcab0c17eb96e50d

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