Wipe cetmix_tower_yaml (polluted by overlapping uploads)

addons/cetmix_tower_yaml/demo/demo_data.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<odoo noupdate="1">
-    <!-- Add demo users to groups  -->
-    <record id="base.user_admin" model="res.users">
-        <field
-            name="groups_id"
-            eval="[
-                (4, ref('cetmix_tower_yaml.group_export')),
-                (4, ref('cetmix_tower_yaml.group_import')),
-            ]"
-        />
-    </record>
-</odoo>