Remove stub comment on function that is not a stub.

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@392139 f38db490-d61c-443f-a65b-d21fe96a405b
Add some safety cleanup for a failed push into a bridge.

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@392140 f38db490-d61c-443f-a65b-d21fe96a405b