Hi Syd,
I went to the prestashop webfiles on the server (cpanel) and I went to modules/mailalerts/mails/en/new_order.html
There I comment out
<tr style="text-align: right;"> <td style="background-color: #dde2e6; padding: 0.6em 0.4em;" colspan="4">Total Tax paid</td> <td style="background-color: #dde2e6; padding: 0.6em 0.4em;">{total_tax_paid}</td> </tr>
Its not a full solution but its better than nothing
You can do the same method to remove gift wrapping