Making it work with py-test. Remove references to removed saved_class.

Index: test/compliancetest.py
--- test/compliancetest.py.orig
+++ test/compliancetest.py
@@ -6,9 +6,6 @@ import lockfile
 
 
 class ComplianceTest(object):
-    def __init__(self):
-        self.saved_class = lockfile.LockFile
-
     def _testfile(self):
         """Return platform-appropriate file.  Helper for tests."""
         import tempfile
@@ -29,7 +26,8 @@ class ComplianceTest(object):
             else:
                 raise SystemError("unrecognized file: %s" % tf)
         finally:
-            lockfile.LockFile = self.saved_class
+             pass
+
 
     def _test_acquire_helper(self, tbool):
         # As simple as it gets.