Remove FeatureTracker from DurableCatalogImpl

The feature tracker is not part of the DurableCatalog abstract interface. When interfaces was moved from DurableCatalog to Collection in SERVER-56023 it resulted in prepareForIndexBuild having to call multiple functions on the DurableCatalog because some work needs to be adjusted depending on the FeatureTracker.

FeatureTracker should be deleted altogether.