diff --git a/openedx_events/analytics/data.py b/openedx_events/analytics/data.py
index 568eafff..801ebdd5 100644
--- a/openedx_events/analytics/data.py
+++ b/openedx_events/analytics/data.py
@@ -9,8 +9,6 @@
 
 import attr
 
-from typing import Dict
-
 
 @attr.s(frozen=True)
 class TrackingLogData:
diff --git a/openedx_events/event_bus/avro/custom_serializers.py b/openedx_events/event_bus/avro/custom_serializers.py
index ad596c91..d3503011 100644
--- a/openedx_events/event_bus/avro/custom_serializers.py
+++ b/openedx_events/event_bus/avro/custom_serializers.py
@@ -13,8 +13,6 @@
 from openedx_events.event_bus.avro.types import PYTHON_TYPE_TO_AVRO_MAPPING
 
 
-import json
-
 class BaseCustomTypeAvroSerializer(ABC):
     """
     Used by openedx_events.avro_utilities class to serialize/deserialize custom types.
diff --git a/openedx_events/event_bus/avro/tests/test_avro.py b/openedx_events/event_bus/avro/tests/test_avro.py
index 53e01a25..67c806bd 100644
--- a/openedx_events/event_bus/avro/tests/test_avro.py
+++ b/openedx_events/event_bus/avro/tests/test_avro.py
@@ -125,7 +125,9 @@ def generate_test_event_data_for_data_type(data_type):  # pragma: no cover
             "block-v1:edx+DemoX+Demo_course+type@video+block@UaEBjyMjcLW65gaTXggB93WmvoxGAJa0JeHRrDThk",
         )},
         dict[str, LibraryLocatorV2]: {'key': LibraryLocatorV2.from_string('lib:MITx:reallyhardproblems')},
-        dict[str, LibraryUsageLocatorV2]: {'key': LibraryUsageLocatorV2.from_string('lb:MITx:reallyhardproblems:problem:problem1')},
+        dict[str, LibraryUsageLocatorV2]: {
+            'key': LibraryUsageLocatorV2.from_string('lb:MITx:reallyhardproblems:problem:problem1'),
+        },
         dict[str, List[int]]: {'key': [1, 2, 3]},
         dict[str, List[str]]: {'key': ["hi", "there"]},
         dict[str, dict[str, str]]: {'key': {'key': 'value'}},
diff --git a/openedx_events/tooling.py b/openedx_events/tooling.py
index c6fa1bbf..1beb55a0 100644
--- a/openedx_events/tooling.py
+++ b/openedx_events/tooling.py
@@ -24,9 +24,6 @@
     "org.openedx.content_authoring.course.certificate_config.changed.v1",
     "org.openedx.content_authoring.course.certificate_config.deleted.v1",
     "org.openedx.learning.user.notification.requested.v1",
-    #"org.openedx.learning.thread.created.v1",
-    #"org.openedx.learning.response.created.v1",
-    #"org.openedx.learning.comment.created.v1",
     "org.openedx.learning.course.notification.requested.v1",
     "org.openedx.learning.ora.submission.created.v1",
 ]