Remove the arbitrary timeout from Eventually's
Remove the arbitrary timeout from Eventually's

- It looks like the values defined was meant to be for pollingInterval and they
are arbitrary defined. We should just use the default timeout & polling
intervnal. Reconsider this if there is error in CI.

Co-authored-by: Nick Wei <397a225b6adb51a440bd3821475520403c3e9564@pivotal.io>

cloudfoundry-incubator/rep