Remove duplication in the Makefile
Remove duplication in the Makefile

djs55/xenopsd-previous,djs55/xenopsd,johnelse/xenopsd,cheng--zhang/xenopsd,koushikcgit/xenopsd,simonjbeaumont/xenopsd,cheng--zhang/xenopsd,euanh/xenopsd,djs55/xenopsd,koushikcgit/xenopsd,thomassa/xenopsd,euanh/xenopsd,simonjbeaumont/xenopsd,thomassa/xenopsd,djs55/xenopsd-previous,simonjbeaumont/xenopsd,johnelse/xenopsd,thomassa/xenopsd,johnelse/xenopsd,djs55/xenopsd,koushikcgit/xenopsd,cheng--zhang/xenopsd,djs55/xenopsd-previous,euanh/xenopsd