Update all edx-platform REST endpoints to support JWT Auth (#34152)

* chore: update API endpoints to support default JWT auth

The default DRF Auth classes were recently updated to allow for both JWT and Session auth by default. Any endpoint that overrides the AUTHENTICATION_CLASSES but has just session, just JWT or just both of those should be updated to remove the override.

Details in https://github.com/openedx/edx-platform/issues/33662

lms/djangoapps/instructor_task/rest_api/v1/views.py

@@ -9,8 +9,6 @@ import pytz
 import dateutil
 from celery.states import REVOKED
 from django.db import transaction
-from edx_rest_framework_extensions.auth.jwt.authentication import JwtAuthentication
-from rest_framework.authentication import SessionAuthentication
 from rest_framework.response import Response
 from rest_framework import generics, status
 
@@ -35,10 +33,6 @@ class ListScheduledBulkEmailInstructorTasks(generics.ListAPIView):
                data also includes information about the and course email instance associated with each task.
         * 403: User does not have the required role to view this data.
     """
-    authentication_classes = (
-        JwtAuthentication,
-        SessionAuthentication,
-    )
     permission_classes = (
         CanViewOrModifyScheduledBulkCourseEmailTasks,
     )
@@ -74,10 +68,6 @@ class ModifyScheduledBulkEmailInstructorTask(generics.DestroyAPIView, generics.U
         * 403: User does not have permission to modify the object specified.
         * 404: Requested schedule object could not be found and thus could not be modified or removed.
     """
-    authentication_classes = (
-        JwtAuthentication,
-        SessionAuthentication,
-    )
     permission_classes = (
         CanViewOrModifyScheduledBulkCourseEmailTasks,
     )