purchase_usability: up-port button "Delete lines qty=0" from v10

purchase_usability/models/account_move.py

@@ -0,0 +1,21 @@
+# Copyright 2022 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import models
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    def delete_lines_qty_zero(self):
+        # When a user pulls a PO from a supplier invoice, it creates
+        # all lines including lines that haven't been received. It can be time-consuming
+        # to delete all these lines with qty = 0
+        self.ensure_one()
+        lines = self.env['account.move.line'].search([
+            ('move_id', '=', self.id),
+            ('quantity', '=', 0),
+            ('display_type', '=', False),
+            ])
+        lines.unlink()