Remove extra ruby entry on TravisCI
Remove extra ruby entry on TravisCI

meetupcall/fakeredis,hoffmanc/fakeredis,caulfield/fakeredis,TiteiKo/fakeredis,alienxp03/fakeredis,gotwalt/fakeredis,zegal-cn/fakeredis,guilleiguaran/fakeredis,alexlag/fakeredis,carsonreinke/fakeredis