Revert "UC-2335 - SSS is taking long time to shutdown gracefully"

This reverts commit f8ed7cf97d00c03459f5a7b3311c9293686e7a19.
Merge branch 'release-14.04' of git://github.com/SIPfoundry/sipxecs into release-14.04
Merge branch 'release-14.04' of git://github.com/SIPfoundry/sipxecs into release-14.04