[IMP] purchase: Email sent from PO sent by the current user.

When an email was sent from a PO, the sender was by default the user who created the PO.
The sender is now replaced by the current user.

TaskID: 1934477

closes odoo/odoo#30660

addons/purchase/data/mail_template_data.xml

@@ -5,7 +5,6 @@
             <field name="name">Purchase Order: Send RFQ</field>
             <field name="model_id" ref="purchase.model_purchase_order"/>
             <field name="subject">${object.company_id.name} Order (Ref ${object.name or 'n/a' })</field>
-            <field name="email_from">${object.create_uid.email_formatted | safe}</field>
             <field name="partner_to">${object.partner_id.id}</field>
             <field name="body_html" type="html">
 <div style="margin: 0px; padding: 0px;">
@@ -37,7 +36,6 @@
             <field name="name">Purchase Order: Send PO</field>
             <field name="model_id" ref="purchase.model_purchase_order"/>
             <field name="subject">${object.company_id.name} Order (Ref ${object.name or 'n/a' })</field>
-            <field name="email_from">${object.create_uid.email_formatted | safe}</field>
             <field name="partner_to">${object.partner_id.id}</field>
             <field name="body_html" type="html">
 <div style="margin: 0px; padding: 0px;">