Remove some built files before publish [skip ci] (#6946)
Remove some built files before publish [skip ci] (#6946)


jridgewell/babel,hzoo/babel,kaicataldo/babel,existentialism/babel,chicoxyzzy/babel,shuhei/babel,hulkish/babel,maurobringolf/babel,existentialism/babel,claudiopro/babel,Skillupco/babel,hulkish/babel,babel/babel,hulkish/babel,jridgewell/babel,maurobringolf/babel,existentialism/babel,vadzim/babel,jridgewell/babel,PolymerLabs/babel,kellyselden/babel,claudiopro/babel,chicoxyzzy/babel,samwgoldman/babel,Skillupco/babel,kaicataldo/babel,hzoo/babel,shuhei/babel,babel/babel,hulkish/babel,guybedford/babel,samwgoldman/babel,maurobringolf/babel,babel/babel,Skillupco/babel,chicoxyzzy/babel,guybedford/babel,shuhei/babel,kaicataldo/babel,PolymerLabs/babel,kellyselden/babel,kellyselden/babel,vadzim/babel,guybedford/babel,PolymerLabs/babel,hzoo/babel,claudiopro/babel,kaicataldo/babel,jridgewell/babel,Skillupco/babel,kellyselden/babel,samwgoldman/babel,babel/babel,chicoxyzzy/babel,hzoo/babel