res_pjsip_refer: remove stray debugging line

How'd those @ symbols get in there...


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@419316 f38db490-d61c-443f-a65b-d21fe96a405b
endpoints: Fix failing unit tests from r419196

This patch does two things:
(1) It updates the unit tests to expect additional stasis messages. More
    messages are now sent to the endpoint topic, due to forwarding all
    channel messages and the forwarding relationship set up between
    endpoints themselves.
(2) Remove the technology forwarding subscription during
    ast_endpoint_shutdown. This prevents an improper double shutdown of
    an endpoint from occurring.


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@419318 f38db490-d61c-443f-a65b-d21fe96a405b