Need to prevent users deleting the invoices once after its vouchered.

Summary:

Users are accidentally deleting the invoices from the screen once the invoice has been vouchered and sent for payment to AP. We need a way to prevent this i.e., to stop users from deleting if there is a voucher. Based on the oracle SR response its expected functionality and to avoid this it was suggested that we get rid of the delete button. But we need delete option to continue because if there are invoices which are incorrectly created we may have to delete them.

Content (required):

Prevent invoice deletion if there is a voucher existing

Version (include the version you are using, if applicable):