Remove F401 unused imports in fbcode//mcrouter:mcrouter_integration_tests-library

Reviewed By: drinkmorewaterr

Differential Revision: D109110300

fbshipit-source-id: 3f5518cee8ac2c9db3e8f279899d3e3e22d6a22a

Author: generatedunixname2333890303787380

mcrouter/test/test_mcrouter.py

@@ -11,7 +11,6 @@
 
 from mcrouter.test.MCProcess import MockMemcached
 from mcrouter.test.McrouterTestCase import McrouterTestCase
-from mcrouter.test.mock_servers import ConnectionErrorServer, SleepServer
 
 
 class TestDevNull(McrouterTestCase):