drm/amdgpu: Retire query/reset_ras_err_status from gfx_v9_4_3

Not needed anymore.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Stanley Yang <Stanley.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>