remove unused import

Author: blink1073

test/asynchronous/test_pooling.py

@@ -24,7 +24,6 @@
 from test.asynchronous.utils import async_get_pool, async_joinall, flaky
 
 from bson.codec_options import DEFAULT_CODEC_OPTIONS
-from bson.raw_bson import RawBSONDocument
 from bson.son import SON
 from pymongo import AsyncMongoClient, message, timeout
 from pymongo.errors import AutoReconnect, ConnectionFailure, DuplicateKeyError

test/test_pooling.py

@@ -24,7 +24,6 @@
 from test.utils import flaky, get_pool, joinall
 
 from bson.codec_options import DEFAULT_CODEC_OPTIONS
-from bson.raw_bson import RawBSONDocument
 from bson.son import SON
 from pymongo import MongoClient, message, timeout
 from pymongo.errors import AutoReconnect, ConnectionFailure, DuplicateKeyError