Fix assertions about client and server nonces
Fix assertions about client and server nonces

Previously, this test asserted that client_random() and server_random() returned non-identical
references.  This was kind of a pointless assertion.  What the methods should return is the
correct client or server nonce, whether called on the client or the server connection object.


harnesscloud/remyroy-pyopenssl-shutdown-fix,harnesscloud/remyroy-pyopenssl-shutdown-fix