fix failing codecheck

anjsudh · anjsudh · commit a5164b874487 · 2018-11-05T16:48:58.000+05:30
diff --git a/pandas/util/testing.py b/pandas/util/testing.py
@@ -775,7 +775,7 @@ def ensure_clean_dir():
     finally:
         try:
             rmtree(directory_name)
-        except Exception as e:
+        except Exception:
             pass
 
 
