[odrs-web] trivial: Fix a backtrace when adding a moderator

[Richard Hughes <rhughes src gnome org>]

commit ca555ef96d6089acce0725f22fb421f47b710341
Author: Richard Hughes <richard hughsie com>
Date:   Fri Jul 19 16:54:13 2019 +0100

    trivial: Fix a backtrace when adding a moderator

 app_data/odrs/models.py | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/app_data/odrs/models.py b/app_data/odrs/models.py
index 4406dc2..3d77354 100644
--- a/app_data/odrs/models.py
+++ b/app_data/odrs/models.py
@@ -348,7 +348,6 @@ class Moderator(db.Model):
         self.display_name = display_name
         self.is_enabled = False
         self.is_admin = False
-        self.user_id = 0
         self.locales = None
         self.locales = password