Remove old route from the paas-billing app
Remove old route from the paas-billing app

The `cf push` doesn't remove any previous mapped routes so we have to remove it
manually.

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