Remove as_old_location methods

They were incorrect if there were periods in the org or name.

cms/djangoapps/auth/authz.py

@@ -37,9 +37,7 @@ def get_course_groupname_for_role(location, role):
         groupnames.append('{0}_{1}'.format(role, location.course))
     elif isinstance(location, CourseLocator):
         old_location = loc_mapper().translate_locator_to_location(location)
-        if old_location is None:
-            groupnames.append('{0}_{1}'.format(role, location.as_old_location_course_id))
-        else:
+        if old_location:
             groupnames.append('{0}_{1}'.format(role, old_location.course_id))
 
     for groupname in groupnames:

cms/djangoapps/contentstore/views/course.py

@@ -131,9 +131,9 @@ def course_index(request, course_url):
     lms_link = get_lms_link_for_item(old_location)
 
     upload_asset_callback_url = reverse('upload_asset', kwargs={
-        'org': location.as_old_location_org,
-        'course': location.as_old_location_course,
-        'coursename': location.as_old_location_run
+        'org': old_location.org,
+        'course': old_location.course,
+        'coursename': old_location.name
     })
 
     course = modulestore().get_item(old_location, depth=3)