WCMS-202 removed services from buweb-content-models

note: services and their relations have been recorded so that they can be recreated as departments
Factories are really only supposed to include the minimum amount of data needed for the object to validate. If we want a way to generate an object with all it's data, maybe the extra details can be moved into a special trait called `:all_filled_out` or something (that may not be a good name though). This doesn't need to change in this PR, but we should keep it in mind in the future.