Fix lint issue.

Kami · Kami · commit 4ea7d4018712 · 2020-02-18T10:15:27.000+01:00
diff --git a/codespeed/commits/github.py b/codespeed/commits/github.py
@@ -20,7 +20,6 @@
 import json
 
 import isodate
-from django.conf import settings
 from django.core.cache import cache
 from django.conf import settings
 
