Using logging filters from edx-django-utils (#25492)

The UserIdFilter and RemoteIpFilter logging filter classes
were moved from edx-platform to edx-django-utils for more
distributed use. This updated removes those classes from
edx-platform, and references their counterparts in
edx-django-utils.

ENT-3494

openedx/core/djangoapps/util/log_utils.py

@@ -1,34 +0,0 @@
-"""
-Django-based logging utilities
-
-UserIdFilter: A logging.Filter that adds userid to the logging context
-
-RemoteIpFilter: A logging filter that adds the remote IP to the logging context
-"""
-
-
-from logging import Filter
-
-from crum import get_current_request
-from crum import get_current_user
-
-
-class UserIdFilter(Filter):
-    def filter(self, record):
-        user = get_current_user()
-        if user and user.pk:
-            record.userid = user.pk
-        else:
-            record.userid = None
-        return True
-
-
-class RemoteIpFilter(Filter):
-    def filter(self, record):
-        # get IP from context
-        request = get_current_request()
-        if request and 'REMOTE_ADDR' in request.META:
-            record.remoteip = request.META['REMOTE_ADDR']
-        else:
-            record.remoteip = None
-        return True