Remove useless import.
diff --git a/Lib/test/test_complex.py b/Lib/test/test_complex.py
index 592b07a..20ae1de 100644
--- a/Lib/test/test_complex.py
+++ b/Lib/test/test_complex.py
@@ -1,4 +1,4 @@
-import unittest, os, math
+import unittest, os
 from test import test_support
 
 import warnings