This function deinitializes RIL.
HRESULT RIL_Deinitialize( HRIL hRil );
Handle to an RIL instance returned by RIL_Initialize.
An HRESULT value of S_OK indicates success. HRESULT values of E_XXX indicate an error. Errors are defined in the winerror.h file.
This function is synchronous. An asynchronous result callback is not returned.