Updating edx-enterprise to 0.51.2.

https://github.com/edx/edx-enterprise/compare/0.51.0...0.51.2

common/djangoapps/util/tests/test_db.py

@@ -236,7 +236,4 @@ class MigrationTests(TestCase):
         out = StringIO()
         call_command('makemigrations', dry_run=True, verbosity=3, stdout=out)
         output = out.getvalue()
-        # Temporary for `edx-enterprise` version bumps with migrations.
-        # Please delete when `edx-enterprise==0.48.3`.
-        if 'Remove field' not in output and 'Delete model' not in output:
-            self.assertIn('No changes detected', output)
+        self.assertIn('No changes detected', output)

lms/djangoapps/course_goals/migrations/0002_auto_20171010_1129.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course_goals', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='coursegoal',
+            name='goal_key',
+            field=models.CharField(default=b'unsure', max_length=100, choices=[(b'certify', 'Earn a certificate'), (b'complete', 'Complete the course'), (b'explore', 'Explore the course'), (b'unsure', 'Not sure yet')]),
+        ),
+    ]

requirements/edx/base.txt

@@ -47,7 +47,7 @@ edx-lint==0.4.3
 astroid==1.3.8
 edx-django-oauth2-provider==1.2.5
 edx-django-sites-extensions==2.3.0
-edx-enterprise==0.51.1
+edx-enterprise==0.51.3
 edx-oauth2-provider==1.2.2
 edx-opaque-keys==0.4.0
 edx-organizations==0.4.6