chore: remove bok choy settings

xmodule/tests/test_mongo_utils.py

@@ -3,7 +3,6 @@ Tests for methods defined in mongo_utils.py
 """
 
 
-import os
 from unittest import TestCase
 from uuid import uuid4
 
@@ -29,7 +28,7 @@ class MongoUtilsTests(TestCase):
         """
         Test that read_preference parameter gets converted to a valid pymongo read preference.
         """
-        host = 'edx.devstack.mongo' if 'BOK_CHOY_HOSTNAME' in os.environ else 'localhost'
+        host = 'localhost'
         db = 'test_read_preference_%s' % uuid4().hex
         # Support for read_preference given in constant name form (ie. PRIMARY, SECONDARY_PREFERRED)
         connection = connect_to_mongodb(db, host, read_preference=enum_name)