In the event a Contract is no longer in use, you can inactivate the contact to prevent staff members in your office from using it; there is no way to permanently delete a contract.
Follow the steps below to inactivate a contact.
Select Customer Setup > Codes... > Contracts.
Use the Show All button to view all contracts. Or use the Search field to further drill down your search.
Select the Contract.
Place a check the Make this contract inactive checkbox.