fix(backend): do not import (nonexistent) test code

[wilsonianb]

Changes proposed in this pull request

Context

• fixes Don't import test code #686

Checklist

• Related issues linked using fixes #number
• Tests added/updated
• Documentation added
• Make sure that all checks pass

[mkurapov]

In my openPaymentsClientService refactoring, I propose we don't use "incomingPaymentRoutes" and "connectionRoutes" at all as dependencies in this file, but "incomingPaymentService" and "connectionService" instead -> I feel like we shouldn't need to mock a context to fetch data within the service itself. Let me know what you think of that.

This makes sense for now to fix local development, however!

[wilsonianb]

In my openPaymentsClientService refactoring, I propose we don't use "incomingPaymentRoutes" and "connectionRoutes" at all as dependencies in this file, but "incomingPaymentService" and "connectionService" instead -> I feel like we shouldn't need to mock a context to fetch data within the service itself. Let me know what you think of that.

I've been wrestling with that for a while:

• feat(backend): add Open Payments client service #595 (comment)

If we can figure out how to reuse the model to Open Payments response conversions used by the routes, it should be more tolerable than this context mocking I've introduced.