FIX_DIRAC_LS_SYNTHESIS_CONFIG leftover in the code

In the file ivas_dirac_dec.c, there is the following code

    if ( nchan_transport_orig > 2 && hDirAC->hOutSetup.is_loudspeaker_setup && st_ivas->renderer_type == RENDERER_DIRAC
#ifdef FIX_DIRAC_LS_SYNTHESIS_CONFIG
         && !hodirac_flag
#endif
    )

which looks like FIX_DIRAC_LS_SYNTHESIS_CONFIG should be accepted.