Remove outdated way of modifying response.

slapos/libnetworkcachetests.py

@@ -245,8 +245,6 @@ class OnlineTestWrongChecksum(OnlineMixin, unittest.TestCase):
 
   def test_upload_wrong_return_sha(self):
     """Check reaction in case of wrong sha returned"""
-    httplib.HTTPConnection(self.host, self.port).request('SPECIAL',
-      '/cksum/invalid')
     nc = NetworkcacheClient(self.shacache, self.shadir)
     self.assertRaises(UploadError, nc.upload, self.test_data)