clean up vagrant bosh instructions
clean up vagrant bosh instructions

Signed-off-by: Alex Suraci <a8053324ea51f0cc533cfe7b17f8bee3c920919f@pivotal.io>

Amit-PivotalLabs/concourse,Amit-PivotalLabs/concourse,holgero/concourse,Amit-PivotalLabs/concourse,beni55/concourse,squeedee/concourse,cjcjameson/concourse,jbayer/concourse,concourse/concourse,concourse/concourse,CloudCredo/concourse,zachgersh/concourse,sedouard/concourse,longnguyen11288/concourse,longnguyen11288/concourse,sedouard/concourse,zachgersh/concourse,cjcjameson/concourse,beni55/concourse,concourse/concourse,beni55/concourse,CloudCredo/concourse,CloudCredo/concourse,squeedee/concourse,concourse/concourse,holgero/concourse,cjcjameson/concourse,jbayer/concourse,jbayer/concourse,squeedee/concourse,concourse/concourse,holgero/concourse,longnguyen11288/concourse,sedouard/concourse,zachgersh/concourse