Remove unused import
diff --git a/Lib/decimal.py b/Lib/decimal.py
index 07c2cec..d274552 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -136,7 +136,6 @@
 
 __version__ = '1.70'    # Highest version of the spec this complies with
 
-import copy as _copy
 import math as _math
 import numbers as _numbers