Fix a merge fail

Author: davidfischer

readthedocs/projects/tasks.py

@@ -27,7 +27,6 @@
 from django.db.models import Q
 from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
-from readthedocs.config import ConfigError
 from slumber.exceptions import HttpClientError
 
 from readthedocs.builds.constants import (