Deleting Content Types Post Migration

[ProNotion]

I have some content types that need to be removed but only after the migrations are complete. Can/should that be something that is handled by this package or would it be best handled in a separate process?

To give an example...I have a site with slideshow nodes containing slides. I have a migrator for the Grid Macro to Block migrations that will copy the slides from the original slide node to the content block. Once the migration is complete the original slideshow nodes are redundant and can/should be removed.

Also open to alternative ideas or approaches I may not have considered.