Remove redundant imports.
diff --git a/Lib/shutil.py b/Lib/shutil.py
index d6b8565..468ffcb 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -15,6 +15,7 @@
 
 try:
     import bz2
+    del bz2
     _BZ2_SUPPORTED = True
 except ImportError:
     _BZ2_SUPPORTED = False