'Assert that we can remove a DSA identity.'

def test_removeDSAIdentity(self):

    d = self.client.removeIdentity(self.dsaPrivate.blob())
    self.pump.flush()
    def _check(ignored):
        self.assertEqual(1, len(self.server.factory.keys))
        self.assertIn(self.rsaPrivate.blob(), self.server.factory.keys)
    return d.addCallback(_check)
