Remove unneeded datetime module

Author: pamelafox

app/backend/prepdocslib/listfilestrategy.py

@@ -9,7 +9,6 @@
 from typing import IO, AsyncGenerator, Dict, List, Optional, Union
 
 from azure.core.credentials_async import AsyncTokenCredential
-from azure.identity import DefaultAzureCredential
 from azure.storage.blob import BlobServiceClient
 from azure.storage.filedatalake.aio import DataLakeServiceClient
 
@@ -214,7 +213,7 @@ def count_docs(self) -> int:
         # Create a BlobServiceClient using account URL and credentials
         service_client = BlobServiceClient(
             account_url=f"https://{self.data_lake_storage_account}.blob.core.windows.net",
-            credential=DefaultAzureCredential(),
+            credential=self.credential,
         )
 
         # Get the container client

app/backend/requirements.in

@@ -30,4 +30,3 @@ types-beautifulsoup4
 msgraph-sdk==1.1.0
 openai-messages-token-helper
 python-dotenv
-datetime

app/backend/requirements.txt

@@ -435,7 +435,3 @@ zipp==3.20.0
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools
-
-# used for adlsgen2setup.py
-datetime==4.3.0
-    # via -r requirements.in