Make the routes static for both on-prem and connected experiences

[ShimShtein]

Don't create conditional routes as here:

foreman_rh_cloud/config/routes.rb

Line 12 in b59d34e

unless ForemanRhCloud.with_local_advisor_engine?

This may confuse tests, if the configuration is different on your local setup.
Instead it would be better to move this check to a before_action filter and then abort with 404 in case we don't want the route to be available,