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/support/views/program_enrollments.py

@@ -6,9 +6,7 @@ from django.contrib.auth.models import User  # lint-amnesty, pylint: disable=imp
 from django.db.models import Q
 from django.utils.decorators import method_decorator
 from django.views.generic import View
-from edx_rest_framework_extensions.auth.jwt.authentication import JwtAuthentication
 from rest_framework.views import APIView
-from rest_framework.authentication import SessionAuthentication
 from rest_framework.response import Response
 from rest_framework.permissions import IsAuthenticated
 from social_django.models import UserSocialAuth
@@ -77,9 +75,6 @@ class LinkProgramEnrollmentSupportAPIView(APIView):
     """
     Support-only API View for linking learner enrollments by support staff.
     """
-    authentication_classes = (
-        JwtAuthentication, SessionAuthentication
-    )
     permission_classes = (
         IsAuthenticated,
     )
@@ -312,9 +307,6 @@ class ProgramEnrollmentsInspectorAPIView(ProgramEnrollmentInspector, APIView):
     information of a learner.
     """
 
-    authentication_classes = (
-        JwtAuthentication, SessionAuthentication
-    )
     permission_classes = (
         IsAuthenticated,
     )