NO-JIRA: Removed obsolete/unused store code

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1602303 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: We never want to accidentally convert a string to an Options object

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1602304 13f79535-47bb-0310-9956-ffa450edef68
QPID-3921: Don't leak use qpid/Options.h header unnecessarily.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1602305 13f79535-47bb-0310-9956-ffa450edef68