misc: drop unused template variable model (missing migration) (#31205)

passerelle/base/migrations/0013_delete_templatevar.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.12 on 2019-06-02 13:56
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('base', '0012_job'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='TemplateVar',
+        ),
+    ]