Revert "winaccessibility: let CoCreateInstance calls find the components"

This only works partially: the ClassObjects are only registered on the
main thread; CoCreateInstance on other threads still fails.

This reverts commit 29c6216af8c502f220bb84857d3dda901ddfd234.

winaccessibility/source/UAccCOM/UAccCOM.cxx

@@ -67,14 +67,10 @@ extern "C"
     if (dwReason == DLL_PROCESS_ATTACH)
     {
         _Module.Init(ObjectMap, hInstance, &LIBID_UACCCOMLib);
-        _Module.RegisterClassObjects(CLSCTX_INPROC_SERVER, REGCLS_MULTIPLEUSE);
         DisableThreadLibraryCalls(hInstance);
     }
     else if (dwReason == DLL_PROCESS_DETACH)
-    {
-        _Module.RevokeClassObjects();
         _Module.Term();
-    }
     return TRUE;    // ok
 }
 

winaccessibility/source/service/msaaservice_impl.cxx

@@ -267,14 +267,6 @@ Reference< XInterface > SAL_CALL create_MSAAServiceImpl( Reference< XComponentCo
         }
     }
 
-    // load UAccCOM library so its DllMain can register its COM components
-    static HMODULE h = LoadLibrary("UAccCOM.dll");
-    if (!h)
-    {
-        assert(false);
-        return 0;
-    }
-
     Reference< XMSAAService > xAccMgr( new MSAAServiceImpl() );
 
     AccessBridgeUpdateOldTopWindows( xAccMgr );