kill useless import added by 87331661042b
diff --git a/Lib/importlib/test/source/test_abc_loader.py b/Lib/importlib/test/source/test_abc_loader.py
index 74ca2e1..be81992 100644
--- a/Lib/importlib/test/source/test_abc_loader.py
+++ b/Lib/importlib/test/source/test_abc_loader.py
@@ -5,7 +5,6 @@
 from .. import util
 from . import util as source_util
 
-import collections
 import imp
 import inspect
 import io