Revert "Added instructor info in course overview."

This reverts commit 180cf299.

openedx/core/djangoapps/content/course_overviews/migrations/0011_courseoverview_instructor_info.py

-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import jsonfield.fields
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('course_overviews', '0010_auto_20160329_2317'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='courseoverview',
-            name='instructor_info',
-            field=jsonfield.fields.JSONField(default={}),
-        ),
-    ]

openedx/core/djangoapps/content/course_overviews/models.py

@@ -12,7 +12,6 @@ from django.template import defaultfilters
 
 from ccx_keys.locator import CCXLocator
 from model_utils.models import TimeStampedModel
-from jsonfield.fields import JSONField
 from opaque_keys.edx.keys import CourseKey
 
 from config_models.models import ConfigurationModel
@@ -44,7 +43,7 @@ class CourseOverview(TimeStampedModel):
         app_label = 'course_overviews'
 
     # IMPORTANT: Bump this whenever you modify this model and/or add a migration.
-    VERSION = 5
+    VERSION = 4
 
     # Cache entry versioning.
     version = IntegerField()
@@ -98,7 +97,6 @@ class CourseOverview(TimeStampedModel):
     course_video_url = TextField(null=True)
     effort = TextField(null=True)
     self_paced = BooleanField(default=False)
-    instructor_info = JSONField(null=False, blank=False, default={})
 
     @classmethod
     def _create_from_course(cls, course):
@@ -183,7 +181,6 @@ class CourseOverview(TimeStampedModel):
             effort=CourseDetails.fetch_about_attribute(course.id, 'effort'),
             course_video_url=CourseDetails.fetch_video_url(course.id),
             self_paced=course.self_paced,
-            instructor_info=course.instructor_info,
         )
 
     @classmethod

openedx/core/djangoapps/content/course_overviews/tests.py

@@ -113,7 +113,6 @@ class CourseOverviewTestCase(ModuleStoreTestCase):
             'invitation_only',
             'max_student_enrollments_allowed',
             'catalog_visibility',
-            'instructor_info'
         ]
         for attribute_name in fields_to_test:
             course_value = getattr(course, attribute_name)
@@ -204,24 +203,6 @@ class CourseOverviewTestCase(ModuleStoreTestCase):
                 ],
                 "static_asset_path": "/my/abs/path",        # Absolute path
                 "certificates_show_before_end": True,
-                "instructor_info": {                        # Instructor info provided
-                    "instructors": [
-                        {
-                            "bio": "TestInstructor1 Bio.",
-                            "image": "/fake-image-path/image1.jpeg",
-                            "organization": "TestX",
-                            "name": "TestInstructor1",
-                            "title": "Test Title1"
-                        },
-                        {
-                            "bio": "TestInstructor2 Bio.",
-                            "image": "/fake-image-path/image2.jpeg",
-                            "organization": "TestX",
-                            "name": "TestInstructor2",
-                            "title": "Test Title2"
-                        }
-                    ]
-                }
             },
             {
                 "display_name": "",                         # Empty display name
@@ -232,7 +213,6 @@ class CourseOverviewTestCase(ModuleStoreTestCase):
                 "static_asset_path": "my/relative/path",    # Relative asset path
                 "certificates_show_before_end": False,
                 "catalog_visibility": CATALOG_VISIBILITY_CATALOG_AND_ABOUT,
-                "instructor_info": {},                      # Empty Instructor info
             },
             {
                 "display_name": "",                         # Empty display name
@@ -243,7 +223,6 @@ class CourseOverviewTestCase(ModuleStoreTestCase):
                 "static_asset_path": "",                    # Empty asset path
                 "certificates_show_before_end": False,
                 "catalog_visibility": CATALOG_VISIBILITY_ABOUT,
-                "instructor_info": None,
             },
             {
                 #                                           # Don't set display name