These are tested in Horde_Mapi_Utils::

Not sure why it was even here, probably from some earlier implementation.
getUidFromGoid() isn't even used in activesync code.
Mark these as deprecated.
Add this to Horde_Mapi_Utils::
Fix file header.
Use Horde_Mapi_Utils::
This functionality is tested in Horde_Mapi_Utils::
Correct file header.
Horde_ActiveSync:: requires Horde_Mapi_Utils::