Seriously, does Quickbooks think that their users are not service-only businesses?  I have the same issue.  QB online didn't used to show the sales tax field.  Now it does and there is NO WAY to take it off the invoice statement.  I have tried editing the layout and it does not let you edit those fields on the layout.

They need to stop trying to "automate" every little thing. Some of us actually know what we are doing!