Revert "npm test checks & uses latest babel plugin"
Revert "npm test checks & uses latest babel plugin"

Summary: This reverts commit 47f2602c30b4e7940e26b15825cea5e4980af503.

@steveluscher pointed out that travis already tests the plugin, and for
local testing developers can run the extra `npm test` manually.
Closes https://github.com/facebook/relay/pull/287

Reviewed By: @steveluscher

Differential Revision: D2431415

almasakchabayev/relay,josephsavona/relay,apalm/relay,yungsters/relay,heracek/relay,andimarek/generic-relay,freiksenet/relay,janusnic/relay,chentsulin/relay,rosskevin/relay,TobiasBales/relay,chirag04/relay,u9520107/relay,xuorig/relay,bneiluj/relay,andimarek/generic-relay,Aweary/relay,iamchenxin/relay,venepe/relay,forter/generic-relay,venepe/relay,dbslone/relay,beni55/relay,ide/relay,TobiasBales/relay,gabelevi/relay,tmitchel2/relay,AnSavvides/relay,atxwebs/relay,wincent/relay,cpojer/relay,magnus-lycka/relay,zpao/relay,chirag04/relay,xuorig/relay,rosskevin/relay,AnSavvides/relay,NevilleS/relay,wincent/relay,iamchenxin/relay,gabelevi/relay,cesarandreu/relay,mcanthony/relay,kassens/relay,freiksenet/relay,tmitchel2/relay,jshanson7/relay,AnSavvides/relay,janusnic/relay,facebook/relay,wincent/relay,josephsavona/relay,cpojer/relay,chirag04/relay,Aweary/relay,voideanvalue/relay,wincent/relay,apalm/relay,wincent/relay,ide/relay,kassens/relay,beni55/relay,niklasvh/relay,mroch/relay,NevilleS/relay,quazzie/relay,beni55/relay,dmfrancisco/relay,niklasvh/relay,yungsters/relay,facebook/relay,magnus-lycka/relay,janusnic/relay,iamchenxin/relay,benjaminogles/relay,tmitchel2/relay,ide/relay,cpojer/relay,voideanvalue/relay,freiksenet/relay,kassens/relay,jeffmo/relay,facebook/relay,zpao/relay,jtthrillson/relay,Shopify/relay,voideanvalue/relay,jeffmo/relay,mroch/relay,apalm/relay,voideanvalue/relay,jshanson7/relay,iamchenxin/relay,u9520107/relay,niklasvh/relay,bneiluj/relay,atxwebs/relay,TobiasBales/relay,facebook/relay,vjeux/relay,kassens/relay,xuorig/relay,voideanvalue/relay,magnus-lycka/relay,vjeux/relay,chentsulin/relay,chentsulin/relay,benjaminogles/relay,andimarek/generic-relay,cpojer/relay,NevilleS/relay,wangcan2014/relay,zpao/relay,jshanson7/relay,IlyasM/relayWorking,xymostech/relay,facebook/relay,facebook/relay,michaelchum/relay,mroch/relay,almasakchabayev/relay,kangkot/relay,kassens/relay,cesarandreu/relay,Shopify/relay,mcanthony/relay,wincent/relay,atxwebs/relay,jtthrillson/relay,wangcan2014/relay,almasakchabayev/relay,michaelchum/relay,quazzie/relay,xuorig/relay,voideanvalue/relay,kangkot/relay,heracek/relay,atxwebs/relay,IlyasM/relayWorking,dbslone/relay,xymostech/relay,u9520107/relay,wangcan2014/relay,xuorig/relay,mcanthony/relay,bneiluj/relay,dmfrancisco/relay,josephsavona/relay,IlyasM/relayWorking,jtthrillson/relay,quazzie/relay,cesarandreu/relay,xymostech/relay,kassens/relay,heracek/relay,yungsters/relay,Aweary/relay,xuorig/relay,venepe/relay,jeffmo/relay,vjeux/relay,gabelevi/relay,Shopify/relay,benjaminogles/relay,michaelchum/relay,dmfrancisco/relay,kangkot/relay