Clean up Manage Groups section on legacy dashboard

lms/djangoapps/instructor/views/legacy.py

@@ -376,29 +376,6 @@ def instructor_dashboard(request, course_id):
         return return_csv(course_key.to_deprecated_string().replace('/', '-') + '-anon-ids.csv', datatable)
 
     #----------------------------------------
-    # Group management
-
-    elif 'List beta testers' in action:
-        role = CourseBetaTesterRole(course.id)
-        datatable = _role_members_table(role, _("List of Beta Testers"), course_key)
-        track.views.server_track(request, "list-beta-testers", {}, page="idashboard")
-
-    elif action == 'Add beta testers':
-        users = request.POST['betausers']
-        log.debug("users: {0!r}".format(users))
-        role = CourseBetaTesterRole(course.id)
-        for username_or_email in split_by_comma_and_whitespace(users):
-            msg += "<p>{0}</p>".format(
-                add_user_to_role(request, username_or_email, role, 'beta testers', 'beta-tester'))
-
-    elif action == 'Remove beta testers':
-        users = request.POST['betausers']
-        role = CourseBetaTesterRole(course.id)
-        for username_or_email in split_by_comma_and_whitespace(users):
-            msg += "<p>{0}</p>".format(
-                remove_user_from_role(request, username_or_email, role, 'beta testers', 'beta-tester'))
-
-    #----------------------------------------
     # enrollment
 
     elif action == 'List students who may enroll but may not have yet signed up':

lms/templates/courseware/legacy_instructor_dashboard.html

@@ -386,20 +386,7 @@ function goto( mode)
 
 %if modeflag.get('Manage Groups'):
   %if instructor_access:
-    <hr width="40%" style="align:left">
-    <p>
-    <input type="submit" name="action" value="List beta testers">
-    <p>
-    ## Translators: days_early_for_beta should not be translated
-    ${_("Enter usernames or emails for students who should be beta-testers, one per line, or separated by commas.  They will get to "
-        "see course materials early, as configured via the <tt>days_early_for_beta</tt> option in the course policy.")}
-    </p>
-    <p>
-    <textarea cols="50" row="30" name="betausers"></textarea>
-    <input type="submit" name="action" value="Remove beta testers">
-    <input type="submit" name="action" value="Add beta testers">
-    </p>
-    <hr width="40%" style="align:left">
+    <p class="deprecated">${_("To manage beta tester roles, please visit the 'Membership' section of the instructor dashboard.")}</p>
 
     %if course.is_cohorted:
     <%include file="/course_groups/cohort_management.html" />