Remove libarchive from travis build.
Remove libarchive from travis build.

We use the ijar zip implemetation on all platforms now, so it should not
be necessary to install libarchive library on Mac OS X either.

--
Change-Id: I7010fd68a72b039a58813d17b6d46f1fbc09f0da
Reviewed-on: https://bazel-review.googlesource.com/1453
MOS_MIGRATED_REVID=95532385

UrbanCompass/bazel,juhalindfors/bazel-patches,ulfjack/bazel,JackSullivan/bazel,kamalmarhubi/bazel,mbrukman/bazel,ButterflyNetwork/bazel,mbrukman/bazel,damienmg/bazel,Krasnyanskiy/bazel,cushon/bazel,rzagabe/bazel,manashmndl/bazel,mrdomino/bazel,xindaya/bazel,asarazan/bazel,dinowernli/bazel,rhuss/bazel,spxtr/bazel,d/bazel,wakashige/bazel,d/bazel,juhalindfors/bazel-patches,xindaya/bazel,gavares/bazel,werkt/bazel,hhclam/bazel,ulfjack/bazel,dslomov/bazel-windows,murugamsm/bazel,murugamsm/bazel,safarmer/bazel,xindaya/bazel,dslomov/bazel-windows,mbrukman/bazel,Ansahmadiba/bazel,kidaa/bazel,hermione521/bazel,Ansahmadiba/bazel,dinowernli/bazel,hermione521/bazel,sicipio/bazel,davidzchen/bazel,manashmndl/bazel,ruo91/bazel,kamalmarhubi/bazel,Asana/bazel,anupcshan/bazel,davidzchen/bazel,katre/bazel,mrdomino/bazel,dropbox/bazel,damienmg/bazel,JackSullivan/bazel,nkhuyu/bazel,mbrukman/bazel,Topher-the-Geek/bazel,joshua0pang/bazel,damienmg/bazel,bitemyapp/bazel,kidaa/bazel,kamalmarhubi/bazel,manashmndl/bazel,gavares/bazel,mikelalcon/bazel,ButterflyNetwork/bazel,safarmer/bazel,juhalindfors/bazel-patches,dinowernli/bazel,meteorcloudy/bazel,akira-baruah/bazel,meteorcloudy/bazel,rzagabe/bazel,Ansahmadiba/bazel,dropbox/bazel,davidzchen/bazel,perezd/bazel,hermione521/bazel,safarmer/bazel,meteorcloudy/bazel,sicipio/bazel,mikelikespie/bazel,kchodorow/bazel-1,asarazan/bazel,meteorcloudy/bazel,perezd/bazel,snnn/bazel,Krasnyanskiy/bazel,xindaya/bazel,charlieaustin/bazel,damienmg/bazel,Asana/bazel,ruo91/bazel,rzagabe/bazel,gavares/bazel,kchodorow/bazel,ulfjack/bazel,LuminateWireless/bazel,LuminateWireless/bazel,rzagabe/bazel,iamthearm/bazel,twitter-forks/bazel,UrbanCompass/bazel,ButterflyNetwork/bazel,Topher-the-Geek/bazel,abergmeier-dsfishlabs/bazel,Krasnyanskiy/bazel,rhuss/bazel,sicipio/bazel,hhclam/bazel,Topher-the-Geek/bazel,abergmeier-dsfishlabs/bazel,ulfjack/bazel,bazelbuild/bazel,hhclam/bazel,dslomov/bazel-windows,vt09/bazel,dslomov/bazel,hhclam/bazel,sicipio/bazel,kchodorow/bazel,hermione521/bazel,xindaya/bazel,vt09/bazel,wakashige/bazel,hhclam/bazel,gavares/bazel,davidzchen/bazel,rzagabe/bazel,kchodorow/bazel-1,snnn/bazel,ulfjack/bazel,kchodorow/bazel-1,kchodorow/bazel,anupcshan/bazel,zhexuany/bazel,JackSullivan/bazel,spxtr/bazel,kidaa/bazel,dhootha/bazel,murugamsm/bazel,spxtr/bazel,akira-baruah/bazel,Krasnyanskiy/bazel,dslomov/bazel,UrbanCompass/bazel,Digas29/bazel,bazelbuild/bazel,variac/bazel,rohitsaboo/bazel,vt09/bazel,ruo91/bazel,mrdomino/bazel,mikelikespie/bazel,hhclam/bazel,cushon/bazel,d/bazel,charlieaustin/bazel,variac/bazel,asarazan/bazel,Topher-the-Geek/bazel,ButterflyNetwork/bazel,ruo91/bazel,joshua0pang/bazel,mikelalcon/bazel,rzagabe/bazel,JackSullivan/bazel,bazelbuild/bazel,sicipio/bazel,juhalindfors/bazel-patches,hermione521/bazel,Topher-the-Geek/bazel,snnn/bazel,whuwxl/bazel,whuwxl/bazel,mbrukman/bazel,UrbanCompass/bazel,mikelikespie/bazel,kamalmarhubi/bazel,anupcshan/bazel,whuwxl/bazel,dropbox/bazel,katre/bazel,kidaa/bazel,rohitsaboo/bazel,mikelalcon/bazel,charlieaustin/bazel,asarazan/bazel,rohitsaboo/bazel,spxtr/bazel,Topher-the-Geek/bazel,juhalindfors/bazel-patches,Krasnyanskiy/bazel,vt09/bazel,xindaya/bazel,cushon/bazel,perezd/bazel,d/bazel,dinowernli/bazel,variac/bazel,mrdomino/bazel,dslomov/bazel,katre/bazel,abergmeier-dsfishlabs/bazel,damienmg/bazel,rhuss/bazel,dslomov/bazel,zhexuany/bazel,wakashige/bazel,LuminateWireless/bazel,murugamsm/bazel,mikelalcon/bazel,spxtr/bazel,manashmndl/bazel,twitter-forks/bazel,zhexuany/bazel,murugamsm/bazel,dhootha/bazel,vt09/bazel,sicipio/bazel,mikelikespie/bazel,davidzchen/bazel,abergmeier-dsfishlabs/bazel,Asana/bazel,Digas29/bazel,juhalindfors/bazel-patches,Asana/bazel,zhexuany/bazel,kidaa/bazel,sicipio/bazel,akira-baruah/bazel,LuminateWireless/bazel,mikelalcon/bazel,abergmeier-dsfishlabs/bazel,Krasnyanskiy/bazel,abergmeier-dsfishlabs/bazel,nkhuyu/bazel,kidaa/bazel,werkt/bazel,variac/bazel,wakashige/bazel,cushon/bazel,rhuss/bazel,dslomov/bazel,bitemyapp/bazel,rohitsaboo/bazel,whuwxl/bazel,katre/bazel,davidzchen/bazel,perezd/bazel,mikelalcon/bazel,dslomov/bazel,aehlig/bazel,bitemyapp/bazel,damienmg/bazel,iamthearm/bazel,aehlig/bazel,nkhuyu/bazel,dhootha/bazel,twitter-forks/bazel,variac/bazel,akira-baruah/bazel,zhexuany/bazel,Krasnyanskiy/bazel,bazelbuild/bazel,katre/bazel,joshua0pang/bazel,Asana/bazel,kidaa/bazel,katre/bazel,perezd/bazel,whuwxl/bazel,kchodorow/bazel,kchodorow/bazel-1,JackSullivan/bazel,dhootha/bazel,mrdomino/bazel,kchodorow/bazel,whuwxl/bazel,safarmer/bazel,joshua0pang/bazel,bitemyapp/bazel,rhuss/bazel,damienmg/bazel,UrbanCompass/bazel,charlieaustin/bazel,kchodorow/bazel,vt09/bazel,bazelbuild/bazel,ulfjack/bazel,d/bazel,aehlig/bazel,ButterflyNetwork/bazel,JackSullivan/bazel,safarmer/bazel,ruo91/bazel,mikelikespie/bazel,werkt/bazel,Ansahmadiba/bazel,asarazan/bazel,asarazan/bazel,Asana/bazel,snnn/bazel,Digas29/bazel,bitemyapp/bazel,cushon/bazel,dinowernli/bazel,kidaa/bazel,wakashige/bazel,davidzchen/bazel,dropbox/bazel,meteorcloudy/bazel,joshua0pang/bazel,bazelbuild/bazel,aehlig/bazel,iamthearm/bazel,bitemyapp/bazel,cushon/bazel,twitter-forks/bazel,ruo91/bazel,Topher-the-Geek/bazel,perezd/bazel,snnn/bazel,xindaya/bazel,d/bazel,nkhuyu/bazel,dropbox/bazel,dslomov/bazel-windows,charlieaustin/bazel,joshua0pang/bazel,Topher-the-Geek/bazel,ButterflyNetwork/bazel,mbrukman/bazel,nkhuyu/bazel,spxtr/bazel,ruo91/bazel,werkt/bazel,snnn/bazel,anupcshan/bazel,rzagabe/bazel,dslomov/bazel-windows,asarazan/bazel,iamthearm/bazel,LuminateWireless/bazel,bitemyapp/bazel,aehlig/bazel,charlieaustin/bazel,Ansahmadiba/bazel,mikelikespie/bazel,joshua0pang/bazel,dslomov/bazel-windows,variac/bazel,twitter-forks/bazel,akira-baruah/bazel,kchodorow/bazel-1,perezd/bazel,kchodorow/bazel-1,iamthearm/bazel,anupcshan/bazel,manashmndl/bazel,LuminateWireless/bazel,Digas29/bazel,kamalmarhubi/bazel,snnn/bazel,Asana/bazel,bitemyapp/bazel,twitter-forks/bazel,Krasnyanskiy/bazel,kchodorow/bazel,nkhuyu/bazel,meteorcloudy/bazel,d/bazel,twitter-forks/bazel,dropbox/bazel,manashmndl/bazel,murugamsm/bazel,hermione521/bazel,wakashige/bazel,spxtr/bazel,juhalindfors/bazel-patches,mrdomino/bazel,meteorcloudy/bazel,Digas29/bazel,werkt/bazel,kamalmarhubi/bazel,gavares/bazel,Digas29/bazel,dhootha/bazel,gavares/bazel,akira-baruah/bazel,UrbanCompass/bazel,ulfjack/bazel,rzagabe/bazel,wakashige/bazel,Ansahmadiba/bazel,anupcshan/bazel,werkt/bazel,vt09/bazel,murugamsm/bazel,dhootha/bazel,manashmndl/bazel,Ansahmadiba/bazel,rohitsaboo/bazel,charlieaustin/bazel,rhuss/bazel,safarmer/bazel,dhootha/bazel,rhuss/bazel,nkhuyu/bazel,zhexuany/bazel,JackSullivan/bazel,gavares/bazel,dslomov/bazel,aehlig/bazel,aehlig/bazel,rohitsaboo/bazel,variac/bazel,dinowernli/bazel,gavares/bazel,iamthearm/bazel