Delete obsolete code

RIGS/migrations/0039_delete_eventcrew.py

@@ -0,0 +1,16 @@
+# Generated by Django 3.0.3 on 2020-03-18 00:24
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('RIGS', '0038_auto_20200306_2000'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='EventCrew',
+        ),
+    ]