These providers cause old mobile clients (<=0.1.40) to fail parsing
the list_available_providers_response because their AgentProviderSchema
enum rejects unknown provider IDs, dropping the entire message and
leaving the model picker empty.
The provider implementations remain in the codebase — only the manifest
entries and factory registrations are removed until the updated mobile
app (0.1.43) is live in the App Store.
Mohamed Boudra
44da0c67b2