I'd probably not remove any - at least at first.
You MIGHT run into an issue if you're cross-chained in granny ring and the smaller cogs in back... but it wouldn't be a catastrophic problem and you could reduce the chain size later.
Or it might be just fine.
Best method is to check the size just like if you hadn't known what size the chain was originally - big big, max wrap, connect.
Maybe you need a new chain to go with that new crank anyway.