Remove unnecessary import.
diff --git a/Lib/json/tests/test_speedups.py b/Lib/json/tests/test_speedups.py
index 9438154..2718409 100644
--- a/Lib/json/tests/test_speedups.py
+++ b/Lib/json/tests/test_speedups.py
@@ -1,4 +1,3 @@
-import decimal
 from unittest import TestCase
 
 from json import decoder, encoder, scanner