Can I remove the option for customers to cancel an order in StoreHippo?

Yes, you can manage the cancel order option through Miscellaneous settings.
Go to Settings > MISC section in StoreHippo Admin Panel and disable the Cancel Order option to remove the cancel order from the storefront.

To know more, you can refer to the link below:
https://help.storehippo.com/topic/miscellaneous-settings