removed a file from the tests that isn't used at all

src/ZODB/tests/LocalStorage.py

-##############################################################################
-#
-# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
-# All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE.
-#
-##############################################################################
-class LocalStorage:
-    """A single test that only make sense for local storages.
-
-    A local storage is one that doens't use ZEO. The __len__()
-    implementation for ZEO is inexact.
-    """
-    def checkLen(self):
-        eq = self.assertEqual
-        # The length of the database ought to grow by one each time
-        eq(len(self._storage), 0)
-        self._dostore()
-        eq(len(self._storage), 1)
-        self._dostore()
-        eq(len(self._storage), 2)