Remove unused fields for Subject via migration

course_discovery/apps/course_metadata/migrations/0064_auto_20171018_1528.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.3 on 2017-10-18 15:28
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course_metadata', '0063_auto_20171005_1931'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='subjecttranslation',
+            name='description_t',
+        ),
+        migrations.RemoveField(
+            model_name='subjecttranslation',
+            name='name_t',
+        ),
+        migrations.RemoveField(
+            model_name='subjecttranslation',
+            name='subtitle_t',
+        ),
+    ]