Allow login to fail during `remove-healthcheck-db`
Allow login to fail during `remove-healthcheck-db`

If the API is up, it's still possible that you may not be able to login,
say if UAA is down.

Here we allow the `cf login` to fail also.

jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf,jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf,jimconner/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,jimconner/paas-cf