Remove instructions for installing ginkgo since it is done by bin/test already
Remove instructions for installing ginkgo since it is done by bin/test already

[#99850370]

Signed-off-by: Joseph Palermo <e623ceb69d4eba908c7aa121d8a6c4c407e290f1@pivotal.io>

matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests,matt-royal/cf-acceptance-tests