Remove the load_data calls from the 0013 migration.

It's Helsinki specific stuff and Parkkihubi's parkings app is aiming to be more general.

parkings/migrations/0013_parking_terminal_data.py

@@ -4,11 +4,6 @@
 from django.db import migrations
 
 
-def load_parking_terminals_from_fixture(apps, schema_editor):
-    call_command('loaddata', 'parking_terminals',
-                 verbosity=0)
-
-
 def noop(apps, schema_editor):
     pass
 
@@ -19,7 +14,5 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
-        migrations.RunPython(
-            code=load_parking_terminals_from_fixture,
-            reverse_code=noop),
+        migrations.RunPython(code=noop, reverse_code=noop),
     ]