[reverted] ac/nir: Export clip distances according to clip_cull_mask
ac/nir: Export clip distances according to clip_cull_mask
Avoids a mismatch between PA_CL_VS_OUT_CNTL and what the shader exports.
Fixes: f823581 ("ac/nir: add ac_nir_export_position")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9187