PROTON-315: removed failing test pending the fix to the underlying Messenger code.
I commented it out rather than using "raise Skipped" because I believe this causes the Messenger test to hang.

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1483244 13f79535-47bb-0310-9956-ffa450edef68