[FIX] estate: style errors

Author: tskv

estate/models/estate_property.py

@@ -86,7 +86,7 @@ def _onchange_garden(self):
     @api.ondelete(at_uninstall=False)
     def _unlink_check_state(self):
         for record in self:
-            if record.state not in ('new','cancelled'):
+            if record.state not in ('new', 'cancelled'):
                 raise exceptions.UserError("Only new and cancelled properties can be deleted.")
 
     def property_sold(self):

estate/models/res_users.py

@@ -1,6 +1,6 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo import fields, models, api, exceptions
+from odoo import fields, models
 
 
 class Users(models.Model):