[FIX] style fix for runbot

Author: sawer-odoo

estate_account/models/estate_property.py

@@ -1,4 +1,4 @@
-from odoo import models, fields, Command
+from odoo import models, Command
 
 
 class EstatePropertyExtension(models.Model):
@@ -30,5 +30,5 @@ def sold_property_button(self):
                   ],
                 }
         # Create the invoice
-        account_move = self.env['account.move'].create(values)
+        self.env['account.move'].create(values)
         return super().sold_property_button()