Removed unused import in docs/ref/models/expressions.txt.
@@ -890,7 +890,7 @@ values of an expression in the partition. If the ``released`` field of the
example annotates each movie with the average rating of a movie's peers
released between twelve months before and twelve months after the each movie.
- >>> from django.db.models import Avg, ExpressionList, F, ValueRange, Window
+ >>> from django.db.models import Avg, F, ValueRange, Window
>>> Movie.objects.annotate(
>>> avg_rating=Window(
>>> expression=Avg('rating'),
