I've tried removing tax references from sales/view/view_sales_order.php, customers.php, to no avail.
Can someone please guide me as to how to remove tax info from 'printed' or final quotations, invoices, etc.?

I would like to remove all references to tax or vat in all documents when they are printed or viewed.
In my country these are completely irrelevant.
Tried changing some values but everything breaks down.
Thanks.