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-rw-r--r--sphinx/builders/__init__.py1
1 files changed, 0 insertions, 1 deletions
diff --git a/sphinx/builders/__init__.py b/sphinx/builders/__init__.py
index 64ae2a09..70ec6cb5 100644
--- a/sphinx/builders/__init__.py
+++ b/sphinx/builders/__init__.py
@@ -244,7 +244,6 @@ class Builder(object):
if summary:
self.info(bold('building [%s]' % self.name) + ': ' + summary)
- updated_docnames = set()
# while reading, collect all warnings from docutils
warnings = []
self.env.set_warnfunc(lambda *args: warnings.append(args))