unbreak travis deploy script
unbreak travis deploy script

Summary:
`make build-production` tries to build flow.js, which is already built
by a previous step in travis.

Reviewed By: samwgoldman

Differential Revision: D4742066

fbshipit-source-id: dcfa6f034084072f173ba1ba83df8b373e21f7c0

facebook/flow,facebook/flow,samwgoldman/flow,gabelevi/flow,mroch/flow,ylu1317/flow,samwgoldman/flow,MichaelDeBoey/flow,jamesgpearce/flow,jamesgpearce/flow,fletcherw/flow,MichaelDeBoey/flow,AgentME/flow,mroch/flow,fletcherw/flow,popham/flow,claudiopro/flow,gabro/flow,nmote/flow,facebook/flow,facebook/flow,gabelevi/flow,samwgoldman/flow,popham/flow,AgentME/flow,jamesgpearce/flow,mroch/flow,claudiopro/flow,nmote/flow,ylu1317/flow,JonathanUsername/flow,popham/flow,TiddoLangerak/flow,popham/flow,AgentME/flow,ylu1317/flow,nmote/flow,JonathanUsername/flow,gabro/flow,mroch/flow,gabelevi/flow,JonathanUsername/flow,AgentME/flow,nmote/flow,gabro/flow,fletcherw/flow,jamesgpearce/flow,gabelevi/flow,nmote/flow,nmote/flow,TiddoLangerak/flow,gabelevi/flow,ylu1317/flow,popham/flow,facebook/flow,MichaelDeBoey/flow,claudiopro/flow,fletcherw/flow,TiddoLangerak/flow,claudiopro/flow,TiddoLangerak/flow,jamesgpearce/flow,gabelevi/flow,MichaelDeBoey/flow,claudiopro/flow,jamesgpearce/flow,samwgoldman/flow,gabro/flow,mroch/flow,gabelevi/flow,facebook/flow,MichaelDeBoey/flow,nmote/flow,gabro/flow,jamesgpearce/flow,popham/flow,ylu1317/flow,mroch/flow,JonathanUsername/flow,gabro/flow,JonathanUsername/flow,TiddoLangerak/flow,fletcherw/flow,JonathanUsername/flow,JonathanUsername/flow,facebook/flow,samwgoldman/flow,AgentME/flow,mroch/flow,fletcherw/flow,samwgoldman/flow,popham/flow,samwgoldman/flow