Remove replicated initial condition from states list in test configurations

[twsearle]

Description

We discovered that the initial condition and the first entry in the states list are both passed to oops::GetValues::apply. This means that time interpolation is attempted between two identical states. This does no damage in this case, however it is confusing and possibly incurs a small performance hit.

Provided we receive confirmation that the initial state should not be replicated in the first entry in the states list (in JCSDA-internal/oops#2243), we will need to update the orca-jedi tests and the sith yaml configurations to account for this.

There will also be an impact on sith. I have had a go at a change here:
http://fcm9/projects/utils/browser/ocean_obs_processing_apps/branches/dev/tsearle/r34276_no_initial_condition_in_states
But I will likely need to make a ticket to cover this issue in that repo.

Acceptance Criteria (Definition of Done)

ctests and sith still pass

Dependencies

JCSDA-internal/oops#2243

[tom-j-h]

This can be closed, right @twsearle? #73. My bad if so!

[twsearle]

Ahh yes sorry! I guess the issue and the PR didn't link properly closing it now. Let me know if you need anything else though.

[tom-j-h]

Thank you, all good for now!