Revision 1749781

QPID-7306: Conditional compile mismatch in broker and common libs.

Removed _IN_QPID_BROKER compile definition:

Inconsistently set for libqpidcommon (compiled .cpp files) and libqpidbroker (uses .h) files
  - The broker has a binary incompatible notion of what is in the library.

It sort-of works by accident:
   - shared_ptr<T> only contains a T*, the mismatch is effectively doing reinterpret_cast<T*>
   - plain T* works for op->, but doesn't guarantee no concurrent deletes.
   - we create and destroy shared_ptr in libraries with _IN_QPID_BROKER set so
     we get cleanup, and no cores if we're lucky but there is limited protection from races.

Was only used by management:
  - I think exposing non-shared ptr GetObject was a feature that never materialized,
  - if not we need a separate function or class for non-shared-ptr users.