Revert "Making SQL management commands migration aware."

This reverts commit cb9c9a7b58.

tests/commands_sql_migrations/migrations/0001_initial.py

@@ -1,33 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import models, migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='Comment',
-            fields=[
-                ('id', models.AutoField(verbose_name='ID', primary_key=True, serialize=False, auto_created=True)),
-            ],
-            options={
-            },
-            bases=(models.Model,),
-        ),
-        migrations.CreateModel(
-            name='Book',
-            fields=[
-                ('id', models.AutoField(verbose_name='ID', primary_key=True, serialize=False, auto_created=True)),
-                ('title', models.CharField(db_index=True, max_length=100)),
-                ('comments', models.ManyToManyField(to='commands_sql_migrations.Comment')),
-            ],
-            options={
-            },
-            bases=(models.Model,),
-        ),
-    ]

tests/commands_sql_migrations/models.py

@@ -1,10 +0,0 @@
-from django.db import models
-
-
-class Comment(models.Model):
-    pass
-
-
-class Book(models.Model):
-    title = models.CharField(max_length=100, db_index=True)
-    comments = models.ManyToManyField(Comment)