This code cannot be reached, since we already checked for
`!valid_samples` and returned `VK_ERROR_FEATURE_NOT_PRESET` in that case
above, and have not altered `valid_samples` since.
Fixes: d5da6980d3 ("anv/sparse: don't support depth/stencil with sparse")
CID: 1662063
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37341>