Adapt PrKalmanFilter config to flexible input
It's not necessary anymore to specify unused hit containers for the PrKalmanFilter.
Goes with Rec!2809 (merged), Allen!818 (merged) and LHCb!3473 (merged)
It's not necessary anymore to specify unused hit containers for the PrKalmanFilter.
Goes with Rec!2809 (merged), Allen!818 (merged) and LHCb!3473 (merged)