diff --git a/youtube_dl/extractor/exfm.py b/youtube_dl/extractor/exfm.py
index 0a80638d3..f6e58cdc7 100644
--- a/youtube_dl/extractor/exfm.py
+++ b/youtube_dl/extractor/exfm.py
@@ -1,6 +1,4 @@
 import re
-import json
-import time
 
 from .common import InfoExtractor