dmusic: remove unused variable

[Nikolay Sivov]

  On 7/21/2010 08:31, Austin English wrote:
>   HRESULT WINAPI DMUSIC_CreateDirectMusicPortImpl (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter, LPDMUS_PORTPARAMS pPortParams, LPDMUS_PORTCAPS pPortCaps) {
>   	IDirectMusicPortImpl *obj;
> -	HRESULT hr = E_FAIL;
>   	UINT j;
>
>   	TRACE("(%p,%p,%p)\n", lpcGUID, ppobj, pUnkOuter);
> @@ -381,7 +380,6 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicPortImpl (LPCGUID lpcGUID, LPVOID *ppobj,
>   	obj->caps = *pPortCaps;
>   	obj->pDirectSound = NULL;
>   	obj->pLatencyClock = NULL;
> -	hr = DMUSIC_CreateReferenceClockImpl(&IID_IReferenceClock, (LPVOID*)&obj->pLatencyClock, NULL);
>
>   if(0)
>   {
I doubt you could remove a call here. And probably return value should 
be used to exit earlier on a failure.