[FIX] sale: Duplicate field VAT in report_invoice_document

Removed vat field from inherited invoice template to avoid a duplication.

opw:1903782, 1903149

closes odoo/odoo#28249

addons/sale/report/invoice_report_templates.xml

@@ -16,7 +16,6 @@
             </t>
             <div t-field="o.partner_id"
                 t-options='{"widget": "contact", "fields": ["address", "name"], "no_marker": True}' groups="sale.group_delivery_invoice_address"/>
-            <div t-if="o.partner_id.vat" class="mt16" groups="sale.group_delivery_invoice_address"><t t-esc="o.company_id.country_id.vat_label or 'Tax ID'"/>: <span t-field="o.partner_id.vat"/></div>
         </xpath>
     </template>
 </odoo>