```ruby
class OrganisationalSectionServiceRegistry < AbstractSectionServiceRegistry
  def initialize(organisation_slug:)
    @organisation_slug = organisation_slug
  end

  attr_reader :organisation_slug
end
```

Remove unused service registry organisation_slug attribute
user
```ruby
class OrganisationalSectionServiceRegistry < AbstractSectionServiceRegistry
  def initialize(organisation_slug:)
    @organisation_slug = organisation_slug
  end
end
```
assistant