Remove dead FileNotFoundError (#618)

asottile · web-flow · commit f809b9a128dd · 2017-09-09T17:34:50.000-07:00
diff --git a/tox/session.py b/tox/session.py
@@ -17,10 +17,6 @@
 from tox.config import parseconfig
 from tox.result import ResultLog
 from subprocess import STDOUT
-try:
-    FileNotFoundError
-except NameError:
-    FileNotFoundError = IOError
 
 
 def now():
